Exhibit 4.01

                                                                  EXECUTION COPY
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                       ADELPHIA COMMUNICATIONS CORPORATION

                                       AND

                              THE BANK OF NEW YORK
                (successor to Harris Trust Company of New York),
                                     Trustee


                     10 1/4% Senior Notes due June 15, 2011


                          FOURTH SUPPLEMENTAL INDENTURE


                            Dated as of June 12, 2001


                                       TO


                                    INDENTURE


                           Dated as of April 28, 1999



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<TABLE>
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                                TABLE OF CONTENTS

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                              ARTICLE 1 DEFINITIONS
<S>                                                                                                               <C>
   ss.1.1.  Definitions............................................................................................1
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                      ARTICLE 2 FORM AND TERMS OF THE NOTES
   ss.2.1.  Form and Dating.......................................................................................10
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   ss.2.2.  Execution and Authentication..........................................................................11
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   ss.2.3.  Depository and Paying Agent for Notes.................................................................11
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   ss.2.4.  Transfer and Exchange of Notes........................................................................11
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   ss.2.5.  Change of Control Offer...............................................................................13
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   ss.2.6.  Events of Default.....................................................................................15
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   ss.2.7.  Acceleration..........................................................................................17
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   ss.2.8.  Mergers and Consolidations............................................................................17
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   ss.2.9.  Supplemental Indentures...............................................................................18
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   ss.2.10.    Covenants..........................................................................................19
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   ss.2.11.    Defeasance and Covenant Defeasance.................................................................24
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   ss.2.12.    Designated Senior Debt.............................................................................24
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                             ARTICLE 3 MISCELLANEOUS
   ss.3.1.  Effect of Headings....................................................................................24
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   ss.3.2.  Successors and Assigns................................................................................24
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   ss.3.3.  Separability Clause...................................................................................24
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   ss.3.4.  Governing Law.........................................................................................25
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                                    EXHIBITS

Exhibit A         FORM OF NOTES
</TABLE>

<PAGE>
                  THIS FOURTH SUPPLEMENTAL INDENTURE, dated as of June 12, 2001
("Supplemental Indenture"), is by and between ADELPHIA COMMUNICATIONS
CORPORATION, a Delaware corporation (the "Company"), having its principal office
at One North Main Street, Coudersport, PA 16915, and THE BANK OF NEW YORK
(successor to Harris Trust Company of New York, formerly known as Bank of
Montreal Trust Company), a trust company organized under the laws of the State
of New York, as trustee (the "Trustee"), having its principal corporate trust
office at 101 Barclay Street, 21st Floor, New York, NY 10286.

                                   WITNESSETH:

                  WHEREAS, the Company and Bank of Montreal Trust Company,
acting as trustee, executed and delivered an Indenture, dated as of April 28,
1999 (the "Indenture"), to provide for the issuance by the Company from time to
time of Securities to be issued in one or more series as provided in the
Indenture;

                  WHEREAS, the issuance and sale of up to $1,000,000,000
aggregate principal amount of a series of the Company's 10 1/4% Senior Notes due
2011 (the "Notes") have been authorized by resolutions adopted by the Board of
Directors of the Company on January 5, 2001;

                  WHEREAS, the Company desires to issue and sell $1,000,000,000
aggregate principal amount of the Notes on the date hereof;

                  WHEREAS, the Company desires to enter into a supplemental
indenture pursuant to Section 9.1 of the Indenture to supplement the Indenture
to establish the form and terms of the Notes;

                  WHEREAS, the Company desires to designate the Notes as
Designated Senior Debt pursuant to the First Supplemental Indenture, dated as of
January 23, 2001 and the Second Supplemental Indenture, dated as of April 23,
2001, to the Subordinated Debt Indenture, dated as of January 23, 2001, by and
between Adelphia Communications Corporation and The Bank of New York, as
trustee; and

                  NOW, THEREFORE, for and in consideration of the premises
stated herein and the purchase of the Notes by the Holders thereof, the parties
hereto hereby enter into this Supplemental Indenture, for the equal and
proportionate benefit of all Holders of Notes, as follows:


                                    ARTICLE 1

                                   DEFINITIONS

ss.1.1.   Definitions.
          -----------

                  (a) All of the terms used in this Supplemental Indenture which
are defined in the Indenture shall have the meanings specified in the Indenture,
unless otherwise provided herein or unless the context otherwise requires, and
for the purposes of this Supplemental Indenture, the following terms have the
meanings set forth in this Section:

                  "Affiliate" means a Person (i) which directly or indirectly
through one or more intermediaries controls, or is controlled by, or is under
common control with, the Company, (ii) which beneficially owns or holds 10% or
<PAGE>

more of any class of the voting Capital Stock of the Company, or (iii) of which
10% or more of the voting Capital Stock is beneficially owned or held by the
Company, a Restricted Subsidiary or an Unrestricted Subsidiary of the Company.
Without a limitation, an Affiliate also includes any director or executive
officer of the Company. As used herein, "Affiliate" shall not include a
Restricted Subsidiary.

                  "Agent" means any Security Registrar, Paying Agent,
co-registrar or agent for service of notices and demands. See Section 2.3
hereof.

                  "Agent Members" means members of, or participants in, the
Depository.

                  "Aggregate Excess Restricted Investments" means for any fiscal
quarter the aggregate of Excess Restricted Investments with respect to the
Restricted Investments in all of the Unrestricted Subsidiaries and Affiliates of
the Company.

                  "Allowable Securities" means (i) cash equivalents, (ii) common
or preferred Capital Stock in a Person which (x) has Investment Grade Senior
Debt or (y) whose ratio of Indebtedness plus Preferred Stock to Annualized Pro
Forma EBITDA is less than 7.75:1, or (iii) debt securities issued by a Person
which (x) has Investment Grade Senior Debt or (y) whose Leverage Ratio is less
than 7.75:1, provided that the securities in (ii)(y) and (iii)(y) above shall
only be deemed to be Allowable Securities if the principal business of the
Person is owning and operating cable television systems.

                  "Annualized Pro Forma EBITDA" means, with respect to any
Person, (i) such Person's Pro Forma EBITDA for the latest fiscal quarter
multiplied by four, minus (ii) in the case of the Company only, the Company's
Aggregate Excess Restricted Investments for such fiscal quarter.

                  "Asset Sale" means the sale, transfer or other disposition
(other than to the Company or any of its Restricted Subsidiaries) in any single
transaction or series of related transactions of (a) any Capital Stock of or
other equity interest in any Restricted Subsidiary, (b) all or substantially all
of the assets of the Company or of any Restricted Subsidiary or (c) all or
substantially all of the assets of a Company System or part thereof serving at
least 5,000 basic subscribers, a division, line of business or comparable
business segment of the Company or any Restricted Subsidiary.

                  "Applicable Procedures" means the procedures of the
Depository.

                  "Capital Stock" means, with respect to any Person, any and all
shares or other equivalents (however designated) of corporate stock, partnership
interests or any other participation, right or other interest in the nature of
any equity interest in such Person or any option, warrant or other security
convertible into any of the foregoing.

                  "Capital Stock Sale Proceeds" means the aggregate net sale
proceeds (including the fair market value of property, other than cash, as
determined by an independent appraisal firm) received by the Company from the
issue or sale (other than to a Subsidiary) by the Company of any class of its
Capital Stock on or after January 1, 1993 (including Capital Stock of the
Company issued after January 1, 1993 upon conversion of or in exchange for other
securities of the Company).

                  "Capitalized Lease Obligations" means Indebtedness represented
by obligations under a lease that is required to be capitalized for financial
reporting purposes in accordance with GAAP and the amount of such Indebtedness
<PAGE>

shall be the capitalized amount of such obligations determined in accordance
with GAAP.

                  "Change of Control" means such time as (i) (a) a "person" or
"group" (within the meaning of Sections 13(d) and 14(d)(2) of the Exchange Act),
other than the Rigas Family and its Affiliates, becomes the "beneficial owner"
(as defined in Rule 13d-3 under the Exchange Act) of more than 35% of the total
voting power required to elect or designate for election a majority of the
Company's Board of Directors and attaching to the then outstanding voting
Capital Stock of the Company and (b) the Rigas Family, together with its
Affiliates, is not at such time the "beneficial owner" (as defined in Rule 13d-3
under the Exchange Act) of more than 35% of the total voting power required to
elect or designate for election a majority of the Company's Board of Directors
and attaching to the then outstanding voting Capital Stock of the Company, or
(ii) during any period of two consecutive calendar years, individuals who at the
beginning of such period constituted the Company's Board of Directors (together
with any new directors whose election by the Company's Board of Directors or
whose nomination for election by the Company's stockholders was approved by a
vote of at least two-thirds of the directors then still in office who either
were directors at the beginning of such period or whose election or nomination
for election was previously so approved or approved by the Rigas Family and its
Affiliates at a time when they had the right or ability by voting right,
contract or otherwise to elect or designate for election a majority of the
Company's Board of Directors) cease for any reason to constitute a majority of
the directors then in office.

                  "Change of Control Triggering Event" means the occurrence of
both a Change of Control and a Rating Decline.

                  "Consolidated Fixed Charge Ratio" means, for any Person, for
any period, the ratio of (i) Annualized Pro Forma EBITDA to (ii) Consolidated
Interest Expense for such period multiplied by four.

                  "Consolidated Interest Expense" means, for any Person, for any
period, the amount of interest in respect of Indebtedness (including
amortization of original issue discount, amortization of debt issuance costs,
and non-cash interest payments on any Indebtedness and the interest portion of
any deferred payment obligation and after taking into account the effect of
elections made under any Interest Rate Agreement, however denominated, with
respect to such Indebtedness), the amount of Redeemable Dividends and the
interest component of rentals in respect of any Capitalized Lease Obligation
paid, accrued or scheduled to be paid or accrued by such Person during such
period, determined on a consolidated basis in accordance with GAAP. For purposes
of this definition, interest on a Capitalized Lease Obligation shall be deemed
to accrue at an interest rate reasonably determined by such Person to be the
rate of interest implicit in such Capitalized Lease Obligation in accordance
with GAAP consistently applied.

                  "Cumulative Credit" means the sum of (i) Capital Stock Sale
Proceeds plus (ii) cumulative EBITDA of the Company from and after January 1,
1993 to the end of the fiscal quarter immediately preceding the date of a
proposed Restricted Payment, or, if such cumulative EBITDA for such period is
negative, minus the amount by which such cumulative EBITDA is less than zero.

                  "Cumulative Interest Expense" means the aggregate amount of
Consolidated Interest Expense paid, accrued or scheduled to be paid or accrued
by the Company from January 1, 1993 to the end of the fiscal quarter immediately
<PAGE>

preceding a proposed Restricted Payment, determined on a consolidated basis in
accordance with GAAP.

                  "Definitive Notes" means Notes that are in the form of the
Notes attached hereto as Exhibit A, that do not include the information called
for by footnotes 1 and 2 thereof.

                  "Depository" means The Depository Trust Company and its
successors.

                  "EBITDA" means, for any Person, for any period, an amount
equal to (A) the sum of (i) consolidated net income for such period (exclusive
of any gain or loss realized in such period upon an Asset Sale), plus (ii) the
provision for taxes for such period based on income or profits to the extent
such income or profits were included in computing consolidated net income and
any provision for taxes utilized in computing net loss under clause (i) hereof,
plus (iii) Consolidated Interest Expense for such period, plus (iv) depreciation
for such period on a consolidated basis, plus (v) amortization of intangibles
for such period on a consolidated basis, plus (vi) any other non-cash items
reducing consolidated net income for such period, minus (B) all non-cash items
increasing consolidated net income for such period, all for such Person and its
Subsidiaries determined in accordance with GAAP consistently applied, except
that with respect to the Company, each of the foregoing items shall be
determined on a consolidated basis with respect to the Company and its
Restricted Subsidiaries only.

                  "Excess Restricted Investment" means, with respect to any
particular Unrestricted Subsidiary or Affiliate of the Company for a fiscal
quarter, the lesser of the amounts described in the following clauses (i) and
(ii), or if such amounts are equal, such amount:

                           (i)      the aggregate amount of any Restricted
                                    Investments (other than the Initial
                                    Investment) made by the Company or any
                                    Restricted Subsidiary with respect to such
                                    Unrestricted Subsidiary or Affiliate and
                                    during the twelve-month period ending on the
                                    last day of such fiscal quarter;

                           (ii)     cash income received during such quarter by
                                    the Company with respect to its Restricted
                                    Investments in such Unrestricted Subsidiary
                                    or Affiliate multiplied by four;

                  and provided that cash income from a particular Restricted
Investment shall be included only (x) if cash income has been received by the
Company with respect to such Restricted Investment during each of the previous
two fiscal quarters, or (y) if the cash income derived from such Restricted
Investment is attributable to Allowable Securities.

                  "Global Note" means a permanent global note that contains the
paragraph referred to in footnote 1 and the additional schedule referred to in
footnote 2 to the form of the Note attached hereto as Exhibit A, and that is
deposited with and registered in the name of the Depository.

                  "Holder" or "Noteholder" means the Person in whose name a Note
is registered on the Security Registrar's books.

                  "Indebtedness" is defined to mean (without duplication), with
respect to any Person, any indebtedness, secured or unsecured, contingent or
otherwise, which is for borrowed money (whether or not the recourse of the
lender is to the whole of the assets of such Person or only to a portion
thereof), or evidenced by bonds, notes, debentures or similar instruments or
<PAGE>

representing the balance deferred and unpaid of the purchase price of any
property (excluding, without limitation, any balances that constitute subscriber
advance payments and deposits, accounts payable or trade payables, and other
accrued liabilities arising in the ordinary course of business) if and to the
extent any of the foregoing indebtedness would appear as a liability upon a
balance sheet of such Person prepared in accordance with GAAP, and shall also
include, to the extent not otherwise included, (i) any Capitalized Lease
Obligations, (ii) obligations secured by a lien to which the property or assets
owned or held by such Person is subject, whether or not the obligation or
obligations secured thereby shall have been assumed, (iii) guaranties of items
of other Persons which would be included within this definition for such other
Persons (whether or not such items would appear upon the balance sheet of the
guarantor), (iv) in the case of the Company, Preferred Stock of its Restricted
Subsidiaries and (v) obligations of any such Person under any Interest Rate
Agreement applicable to any of the foregoing. Notwithstanding the foregoing,
Indebtedness shall not include any interest or accrued interest until due and
payable.

                   "Initial Investment" means the Restricted Investment in a
Person made by the Company or a Restricted Subsidiary that first results in such
Person becoming an Unrestricted Subsidiary or Affiliate of the Company, except
that in the case of Olympus, "Initial Investment" shall mean any Restricted
Investment made in Olympus since February 22, 1994, but only to the extent that
such Restricted Investment when aggregated with the other Restricted Investments
made in Olympus since such date does not exceed $25,000,000.

                  "Interest Rate Agreement" means, for any Person, any interest
rate swap agreement, interest rate cap agreement, interest rate collar agreement
or other similar agreement designed to protect the party indicated therein
against fluctuations in interest rates.

                  "Investment Grade Senior Debt" means, with respect to any
Person, Indebtedness of such Person which has been rated with an investment
grade rating by Moody's or Standard & Poor's Corporation.

                  "Leverage Ratio" is defined as the ratio of (i) the
outstanding Indebtedness of a Person and its Subsidiaries (or in the case of the
Company, its Restricted Subsidiaries) divided by (ii) the Annualized Pro Forma
EBITDA of such Person.

                  "Lien" means with respect to any property or assets of the
Company (it being understood that for the purposes of this definition property
or assets of the Company do not include property or assets of any Subsidiary of
the Company) any mortgage or deed of trust, pledge, hypothecation, assignment,
deposit arrangement, security interest, lien, charge, easement (other than any
easement not materially impairing usefulness or marketability), encumbrance,
preference, priority, or other security agreement or preferential arrangement of
any kind or nature whatsoever on or with respect to such property or assets
(including without limitation, any Capitalized Lease Obligation, conditional
sale, or other title retention agreement having substantially the same economic
effect as any of the foregoing) except for (i) liens for taxes, assessments or
governmental charges or levies on property if the same shall not at the time be
delinquent or thereafter can be paid without penalty, or are being contested in
good faith and by appropriate proceedings; (ii) liens imposed by law such as
carriers', warehousemen's and mechanics' liens and other similar liens arising
in the ordinary course of business which secure payment of obligations not more
than sixty (60) days past due or are being contested in good faith and by
appropriate proceedings; (iii) other liens incidental to the conduct of its
business or the ownership of its property and assets which were not incurred in
<PAGE>

connection with the borrowing of money or the obtaining of advances or credit
and which do not in the aggregate materially detract from the value of its
property or assets or materially impair the use thereof in the operation of its
business; (iv) utility easements, building restrictions and such other
encumbrances or charges against real property as are of a nature generally
existing with respect to properties of a similar character; or (v) liens arising
upon entry of a confession of judgment in Pennsylvania courts in connection with
borrowings not in excess of $1,000,000 in the aggregate.

                  "Notes" has the meaning assigned to it in the preamble to this
Indenture.

                  "Olympus" means Olympus Communications, L.P., a Delaware
limited partnership.

                  "Opinion of Counsel" means a written opinion from legal
counsel who is acceptable to the Trustee. The counsel may be an employee of or
counsel to the Company or the Trustee.

                  "Permitted Investments" means, for any Person, Restricted
Investments made on or after February 22, 1994 consisting of (i) advances for
less than one year issued in the ordinary course of business for working capital
purposes or for the purchase of property, plant and equipment in an amount not
to exceed $5,000,000 in the aggregate outstanding, (ii) with respect to a
Restricted Investment in Olympus, $25,000,000 plus the aggregate amount of cash
income received by the Company from Olympus, minus the aggregate amount of all
Restricted Investments made since February 22, 1994 with respect to Olympus,
(iii) $20,000,000 plus the cash proceeds from the sale or redemption of, or
income from, any Restricted Investments made on or after January 1, 1993, minus
the aggregate amount of all Restricted Investments (excluding Restricted
Investments made with respect to Olympus) since January 1, 1993, (iv) non-cash
Restricted Investments made with the non-cash proceeds from the sale or
redemption of, or income from, any Restricted Investments, or (v) an amount
which, at the time of such Restricted Investment, does not exceed the amount of
Restricted Payments that could then be made by the Company and its Restricted
Subsidiaries under Section 10.6; provided further that no Restricted Investments
may be made under (ii), (iii), (iv) or (v) unless pro forma for such Restricted
Investment the Company could incur $1 of debt under the first paragraph of
Section 10.5.

                  "Permitted Refinancing Indebtedness" means any renewals,
extensions, substitutions, refinancings or replacements of any Indebtedness,
including any successive extensions, renewals, substitutions, refinancings or
replacements so long as (i) the aggregate amount of Indebtedness represented
thereby is not increased by such renewal, extension, substitution, refinancing
or replacement, (ii) in the case of Indebtedness of the Company, the average
life and the date such Indebtedness is scheduled to mature is not shortened and
(iii) in the case of Indebtedness of the Company, the new Indebtedness shall not
be senior in right of payment to the Indebtedness that is being extended,
renewed, substituted, refinanced or replaced.

                  "Preferred Stock" means any Capital Stock of a Person, however
designated, which entitles the holder thereof to a preference with respect to
dividends, distributions or liquidation proceeds of such Person over the holders
of other Capital Stock issued by such Person.

                  "Pro Forma EBITDA" means for any Person, for any period, the
EBITDA of such Person, as determined on a consolidated basis in accordance with
GAAP consistently applied after giving effect to the following: (i) if, during
or after such period, such Person or any of its Subsidiaries shall have made any
<PAGE>

Asset Sale, Pro Forma EBITDA of such Person and its Subsidiaries for such period
shall be reduced by an amount equal to the Pro Forma EBITDA (if positive)
directly attributable to the assets which are the subject of such Asset Sale for
the period or increased by an amount equal to the Pro Forma EBITDA (if negative)
directly attributable thereto for such period and (ii) if, during or after such
period, such Person or any of its Subsidiaries completes an acquisition of any
Person or business which immediately after such acquisition is a Subsidiary of
such Person or whose assets are held directly by such Person or a Subsidiary of
such Person, Pro Forma EBITDA shall be computed so as to give pro forma effect
to the acquisition of such Person or business; and provided further that with
respect to the Company, all of the foregoing references to "Subsidiary" or
"Subsidiaries" shall be deemed to refer only to a "Restricted Subsidiary" or
"Restricted Subsidiaries" of the Company.

                  "Rating Date" means the date which is 90 days prior to the
earlier of (i) a Change of Control and (ii) public notice of the occurrence of a
Change of Control or of the intention of the Company to effect a Change of
Control.

                  "Rating Decline" means the occurrence of the following on, or
within 90 days after, the date of public notice of the occurrence of a Change of
Control or of the intention by the Company to effect a Change of Control (which
period shall be extended so long as the rating of the Notes is under publicly
announced consideration for possible downgrade by Moody's or Standard & Poor's
Corporation): (a) in the event the Notes are rated by either Moody's or Standard
& Poor's on the Rating Date as Investment Grade Senior Debt, the rating of the
Notes by both Moody's and Standard & Poor's shall be below Investment Grade
Senior Debt; or (b) in the event the Notes are rated below Investment Grade
Senior Debt by both Moody's and Standard & Poor's on the Rating Date, the rating
of the Notes by either Moody's or Standard & Poor's shall be decreased by one or
more gradations (including gradations within rating categories as well as
between rating categories).

                  "Redeemable Dividend" means, for any dividend with regard to
Redeemable Stock, the quotient of the dividend divided by the difference between
one and the maximum statutory federal income tax rate (expressed as a decimal
number between 1 and 0) then applicable to the issuer of such Redeemable Stock.

                  "Redeemable Stock" means with respect to any Person, any
Capital Stock that by its terms or otherwise is required to be redeemed or is
redeemable at the option of the holder at any time prior to the maturity of the
Notes.

                  "Restricted Investment" means any advance, loan, account
receivable (other than an account receivable arising in the ordinary course of
business), or other extension of credit (excluding, however, accrued and unpaid
interest in respect of any advance, loan or other extension of credit) or any
capital contribution to (by means of transfers of property to others, payments
for property or services for the account or use of others, or otherwise), any
purchase or ownership of any stocks, bonds, notes, debentures or other
securities (including, without limitation, any interests in any partnership or
joint venture) of, or any bank accounts with or guarantee of any Indebtedness or
other obligations of, any Unrestricted Subsidiary or Affiliate of the Company.

                  "Restricted Payment" means (i) any dividend or distribution
(whether made in cash, property or securities), on or with respect to any shares
of Capital Stock of the Company or Capital Stock of any Subsidiary which is
consolidated with the Company in accordance with GAAP consistently applied,
<PAGE>

except for any dividend or distribution which is made solely to the Company or
another Subsidiary or dividends or distributions payable solely in shares of
Common Stock of the Company, or (ii) any redemption, repurchase, retirement or
other direct or indirect acquisition of (a) Indebtedness of the Company which is
subordinate in right of payment to the Notes, except by exchange for or out of
the proceeds of the substantially concurrent issuance of Permitted Refinancing
Indebtedness or from proceeds of a sale of Capital Stock by the Company, or (b)
shares of Capital Stock of the Company or any warrants, rights or options to
directly or indirectly purchase or acquire any such Capital Stock of the Company
or any securities exchangeable for or convertible into any such shares, other
than options issued or shares purchased or granted under the Company's Stock
Option Plan of 1986 or the Company's Restricted Stock Bonus Plan, from any
employee of the Company or any of its Subsidiaries who, together with any Person
that, directly or indirectly, controls (other than by virtue of being directly
or indirectly the employer of such employee), is controlled by or is under
common control with such employee, owns less than 1% of the outstanding Capital
Stock of the Company, except for the purchase, redemption, retirement or other
acquisition of any shares of the Company's Capital Stock by exchange for, or out
of the proceeds of the substantially concurrent sale of, other shares of its
Capital Stock other than any capital stock which, by its terms (or by the terms
of any security into which it is convertible or for which it is exchangeable),
or upon the happening of any event, matures or is mandatorily redeemable,
pursuant to a sinking fund obligation or otherwise, or redeemable at the option
of the holder thereof, in whole or in part, on or prior to June 15, 2011.

                  "Restricted Subsidiary" means (a) any Subsidiary of the
Company, whether existing on or after the date of this Indenture, unless such
Subsidiary is an Unrestricted Subsidiary or shall have been classified as an
Unrestricted Subsidiary by a resolution adopted by the Board of Directors of the
Company and (b) an Unrestricted Subsidiary which is reclassified as a Restricted
Subsidiary by a resolution adopted by the Board of Directors of the Company,
provided that on and after the date of such reclassification such Unrestricted
Subsidiary shall not incur Indebtedness other than that permitted to be incurred
by a Restricted Subsidiary under the provisions of this Indenture.

                  "Rigas Family" means collectively John J. Rigas and members of
his immediate family, any of their respective spouses, estates, lineal
descendants, heirs, executors, personal representatives, administrators, trusts
for any of their benefit and charitable foundations to which shares of the
Company's Capital Stock beneficially owned by any of the foregoing have been
transferred.

                  "SEC" means the United States Securities and Exchange
Commission as constituted from time to time or any successor performing
substantially the same functions.

                  "Securities Act" means the Securities Act of 1933, as amended.

                  "Subordinated Debt Indenture" means the Subordinated Debt
Indenture, dated as of January 23, 2001, by and between the Company and The Bank
of New York, as trustee, as supplemented by the First Supplemental Indenture,
dated as of January 23, 2001 and the Second Supplemental Indenture, dated as of
April 23, 2001, by and between the Company and the Bank of New York, as trustee.

                  "Subsidiary" of any specified Person means any corporation,
partnership, joint venture, association or other business entity, whether now
existing or hereafter organized or acquired, (i) in the case of a corporation,
of which more than 50% of the total voting power of the Capital Stock entitled
<PAGE>

(without regard to the occurrence of any contingency) to vote in the election of
directors, officers or trustees thereof is held by such first-named Person or
any of its Subsidiaries; or (ii) in the case of a partnership, joint venture,
association or other business entity, with respect to which such Person or any
of its Subsidiaries has the power to direct or cause the direction of the
management and policies of such entity by contract or otherwise if in accordance
with GAAP such entity is consolidated with the first-named Person for financial
statement purposes.

                  "Unrestricted Subsidiary" means (a) any Subsidiary of an
Unrestricted Subsidiary, (b) any Subsidiary of the Company which is classified
after the date of this Indenture as an Unrestricted Subsidiary by a resolution
adopted by the Board of Directors of the Company and (c) any subsidiary which as
of the date of the Indenture has been declared an Unrestricted Subsidiary by a
resolution adopted by the Board of Directors of the Company (such Unrestricted
Subsidiaries including, without limitation, Adelphia Business Solutions, Inc.,
Global Cablevision, Inc., Orchard Park Cablevision, Inc., Global Acquisition
Partners, L.P. and Frontier Vision Partners, L.P. on the date hereof); provided
that a Subsidiary organized or acquired after the date of this Indenture may be
so classified as an Unrestricted Subsidiary only if immediately after the date
of such classification, any investment by the Company and its Restricted
Subsidiaries in any such Subsidiary made at the time of the organization or
acquisition of such Subsidiary would be a Restricted Investment permissible
under this Indenture. The Trustee shall be given prompt notice by the Company of
each resolution adopted by its Board of Directors under this provision, together
with a copy of each such resolution adopted.

                  (b) Other Definitions.

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<CAPTION>
                  The definitions of the following terms may be found in the sections indicated as follows:

                Term                                                          Defined in Section


<S>                                                                                     <C>
                  "Change of Control Offer".............................................2.5
                  "Change of Control Purchase Price"....................................2.5
                  "Company".............................................................Preamble
                  "DTC".................................................................2.3
                  "Event of Default"....................................................2.7
                  "Indenture"...........................................................Preamble
                  "Proposed Change of Control Response Date"............................2.5
                  "Reclassification"....................................................2.11
                  "Supplemental Indenture"..............................................Preamble
                  "Trustee".............................................................Preamble
</TABLE>

<PAGE>
                                    ARTICLE 2

                           FORM AND TERMS OF THE NOTES

ss.2.1.   Form and Dating.
          ---------------

                  The Notes and the Trustee's certificate of authentication
shall be substantially in the form of Exhibit A attached hereto. The Notes shall
be executed on behalf of the Company by its Chairman of the Board, its Vice
Chairman of the Board, its President, one of its Executive Vice Presidents or
one of its Vice Presidents, under its corporate seal reproduced thereon. The
Notes may have notations, legends or endorsements required by law, stock
exchange rule or usage. Each Note shall be dated the date of its authentication.
The Notes shall be in denominations of $1,000 and integral multiples thereof.

                  The terms and provisions contained in the Notes shall
constitute, and are hereby expressly made, a part of this Indenture and the
Company and the Trustee, by their execution and delivery of this Indenture,
expressly agree to such terms and provisions and to be bound thereby.

                  (a) Global Notes. Notes shall be issued initially in the form
of the Global Notes, which shall be deposited on behalf of the purchasers of the
Notes represented thereby with the Depository at its New York office, and
registered in the name of the Depository or a nominee of the Depository, duly
executed by the Company and authenticated by the Trustee as hereinafter
provided. The aggregate principal amount of the Global Notes may from time to
time be increased or decreased by adjustments made on the records of the Trustee
and the Depository or its nominee as hereinafter provided.

                  The Global Notes shall represent such of the outstanding Notes
as shall be specified therein and shall provide that it shall represent the
aggregate amount of outstanding Notes from time to time endorsed thereon and
that the aggregate amount of outstanding Notes represented thereby may from time
to time be reduced or increased, as appropriate, to reflect exchanges and
redemptions. Any endorsement of the Global Notes to reflect the amount of any
increase or decrease in the amount of outstanding Notes represented thereby
shall be made by the Trustee or the Note Custodian (as hereinafter defined), at
the direction of the Trustee, in accordance with instructions given by the
Holder thereof as required by Section 2.4 hereof.

                  Except as set forth in Section 2.4 hereof, the Global Notes
may be transferred, in whole and not in part, only to another nominee of the
Depository or to a successor of the Depository or its nominee.

                  (b)      Book-Entry Provisions. This Section 2.1(b) shall
apply only to the Global Notes deposited with or on behalf of the Depository.

                  The Company shall execute and the Trustee shall, in accordance
with this Section 2.1(b), authenticate and deliver the Global Notes that (i)
shall be registered in the name of the Depository or the nominee of the
Depository and (ii) shall be delivered by the Trustee to the Depository or
pursuant to the Depository's instructions or held by the Note Custodian.
<PAGE>

                  Agent Members shall have no rights either under this Indenture
with respect to any Global Notes held on their behalf by the Depository or by
the Note Custodian or under such Global Notes, and the Depository may be treated
by the Company, the Trustee and any agent of the Company or the Trustee as the
absolute owner of such Global Notes for all purposes whatsoever. Notwithstanding
the foregoing, nothing herein shall prevent the Company, the Trustee or any
agent of the Company or the Trustee from giving effect to any written
certification, proxy or other authorization furnished by the Depository or
impair, as between the Depository and its Agent Members, the operation of
customary practices of such Depository governing the exercise of the rights of
an owner of a beneficial interest in the Global Notes.

                  (c) Definitive Notes. Notes issued in certificated form shall
be substantially in the form of Exhibit A attached hereto (but without including
the text referred to in footnotes 1 and 2 thereto). Except as provided in
Section 2.4, owners of beneficial interests in the Global Notes will not be
entitled to receive physical delivery of certificated Securities.

ss.2.2.   Execution and Authentication.
          ----------------------------

                  An Officer shall sign the Notes for the Company by manual or
facsimile signature. If an Officer whose signature is on a Note no longer holds
that office at the time a Note is authenticated, the Note shall nevertheless be
valid. A Note shall not be valid until authenticated by the manual signature of
the Trustee. The signature shall be conclusive evidence that the Note has been
authenticated under this Indenture.

                  The Trustee shall, upon a written order of the Company signed
by an Officer, authenticate up to $1,000,000,000 aggregate principal amount of
Notes. The aggregate principal amount of Notes outstanding at any time may not
exceed such amounts except as provided in Section 3.6 of the Indenture.

                  The Trustee may appoint an authenticating agent acceptable to
the Company to authenticate Notes. An authenticating agent may authenticate
Notes whenever the Trustee may do so. Each reference in this Indenture to
authentication by the Trustee includes authentication by such agent. An
authenticating agent has the same rights as an Agent to deal with the Company or
an Affiliate of the Company.

ss.2.3.   Depository and Paying Agent for Notes.
          -------------------------------------

                  The Company initially appoints The Depository Trust Company
("DTC") to act as Depository with respect to the Global Notes.

                  The Company initially appoints the Trustee to act as the
Security Registrar and Paying Agent respect to the Global Notes.

ss.2.4.   Transfer and Exchange of Notes.
          ------------------------------

                  (a) Transfer and Exchange of Global Notes. The transfer and
exchange of beneficial interests in the Global Notes shall be effected through
the Depository, in accordance with this Indenture and the procedures of the
Depository therefor, which shall include restrictions on transfer comparable to
those set forth herein to the extent required by the Securities Act. Beneficial
interests in the Global Notes may be transferred to Persons who take delivery
<PAGE>

thereof in the form of a beneficial interest in the Global Notes.

                  (b)      Transfer and Exchange of Definitive Notes. When
Definitive Notes are presented by a Holder to the Security Registrar with a
request:

                           (x)      to register the transfer of the Definitive
                                    Notes; or

                           (y)      to exchange such Definitive Notes for an
                                    equal principal amount of Definitive Notes
                                    of other authorized denominations, the
                                    Security Registrar shall register the
                                    transfer or make the exchange as requested
                                    if its requirements for such transactions
                                    are met; provided, however, that the
                                    Definitive Notes presented or surrendered
                                    for register of transfer or exchange shall
                                    be duly endorsed or accompanied by a written
                                    instruction of transfer in form satisfactory
                                    to the Security Registrar duly executed by
                                    such Holder or by his attorney, duly
                                    authorized in writing.

                  (c)      Intentionally omitted.

                  (d)      Restrictions on Transfer and Exchange of Global
Notes. Notwithstanding any other provision of this Indenture (other than the
provisions set forth in subsection (f) of this Section 2.4), the Global Notes
may not be transferred as a whole except by the Depository to a nominee of the
Depository or by a nominee of the Depository to the Depository or another
nominee of the Depository or by the Depository or any such nominee to a
successor Depository or a nominee of such successor Depository.

                  (e)      Intentionally omitted.

                  (f)      Authentication of Definitive Notes in Absence of
                           Depository.  If at any time:

                           (i)      the Depository for the Notes notifies the
                                    Company that the Depository is unwilling or
                                    unable to continue as Depository for the
                                    Global Notes and a successor Depository for
                                    the Global Notes is not appointed by the
                                    Company within 90 days after delivery of
                                    such notice; or

                           (ii)     the Company at its sole discretion, notifies
                                    the Trustee in writing that it elects to
                                    cause the issuance of Definitive Notes under
                                    this Indenture,

then the Company shall execute, and the Trustee shall, upon receipt of an
authentication order in accordance with Section 2.2 hereof, authenticate and
deliver, Definitive Notes in an aggregate principal amount equal to the
principal amount of the Global Notes in exchange for such Global Notes.

                  (g)      Intentionally omitted.

                  (h)      Cancellation and/or Adjustment of the Global Notes.
At such time as all beneficial interests in the Global Notes have been exchanged
for Definitive Notes, redeemed, repurchased or canceled, the Global Notes shall
be returned to or retained and canceled by the Trustee in accordance with
Section 3.9 of the Indenture. At any time prior to such cancellation, if any
<PAGE>

beneficial interest in the Global Notes is exchanged for Definitive Notes,
redeemed, repurchased or canceled, the principal amount of Notes represented by
the Global Notes shall be reduced accordingly and an endorsement shall be made
on the Global Notes, by the Trustee or the Note Custodian, at the direction of
the Trustee, to reflect such reduction.

                  (i)      General Provisions Relating to Transfers and
                           Exchanges.

                           (i)      To permit registrations of transfers and
                                    exchanges, the Company shall execute and the
                                    Trustee shall authenticate Definitive Notes
                                    and the Global Notes at the Security
                                    Registrar's request.

                           (ii)     No service charge shall be made to a Holder
                                    for any registration of transfer or
                                    exchange, but the Company may require
                                    payment of a sum sufficient to cover any
                                    transfer tax or similar governmental charge
                                    payable in connection therewith (other than
                                    any such transfer taxes or similar
                                    governmental charge payable upon exchange or
                                    transfer pursuant to Section 2.4 hereto).

                           (iii)    All Definitive Notes and the Global Notes
                                    issued upon any registration of transfer or
                                    exchange of Definitive Notes or the Global
                                    Notes shall be the valid obligations of the
                                    Company, evidencing the same debt, and
                                    entitled to the same benefits under this
                                    Indenture, as the Definitive Notes or the
                                    Global Notes surrendered upon such
                                    registration of transfer or exchange.

                           (iv)     Prior to due presentment for the
                                    registration of a transfer of any Note, the
                                    Trustee, any Agent and the Company may deem
                                    and treat the Person in whose name any Note
                                    is registered as the absolute owner of such
                                    Note for the purpose of receiving payment of
                                    principal of and interest on such Notes, and
                                    neither the Trustee, any Agent nor the
                                    Company shall be affected by notice to the
                                    contrary.

                           (v)      The Trustee shall authenticate Definitive
                                    Notes and the Global Notes in accordance
                                    with the provisions of Section 2.2 hereof.

ss.2.5.   Change of Control Offer.
          -----------------------

                  Within 50 days of (i) the proposed occurrence of a Change of
Control or (ii) the occurrence of a Change of Control Triggering Event, the
Company shall notify the Trustee in writing of such proposed occurrence or
occurrence, as the case may be, and shall make an offer to purchase (the "Change
of Control Offer") the Notes at a purchase price equal to 100% of the principal
amount thereof plus any accrued and unpaid interest thereon to the Change of
Control Payment Date (as hereinafter defined) (the "Change of Control Purchase
Price") in accordance with the procedures set forth in this covenant.

                  Within 50 days of (i) the proposed occurrence of a Change of
Control or (ii) the occurrence of a Change of Control Triggering Event, the
Company also shall (a) cause a notice of the Change of Control Offer to be sent
at least once to the Dow Jones News Service or similar business news service in
<PAGE>

the United States and (b) send by first-class mail, postage prepaid, to the
Trustee and to each holder of the Notes, at his address appearing in the
register of the Notes maintained by the Security Registrar, a notice stating:

                           (1) that the Change of Control Offer is being made
                  pursuant to this covenant and that all Notes tendered will be
                  accepted for payment, provided that a Change of Control
                  Triggering Event has occurred and otherwise subject to the
                  terms and conditions set forth herein;

                           (2) the Change of Control Purchase Price and the
                  purchase date (which shall be a Business Day no earlier than
                  50 days from the date such notice is mailed and no later than
                  15 days after the date of the corresponding Change of Control
                  Triggering Event) (the "Change of Control Payment Date");

                           (3) that any Note not tendered will continue to
                  accrue interest;

                           (4) that, unless the Company defaults in the payment
                  of the Change of Control Purchase Price, any Notes accepted
                  for payment pursuant to the Change of Control Offer shall
                  cease to accrue interest after the Change of Control Payment
                  Date;

                           (5) that holders accepting the offer to have their
                  Notes purchased pursuant to a Change of Control Offer will be
                  required to surrender the Notes to the Paying Agent at the
                  address specified in the notice prior to the close of business
                  on the Business Day preceding the Change of Control Payment
                  Date;

                           (6) that holders will be entitled to withdraw their
                  acceptance if the Paying Agent receives, not later than the
                  close of business on the third Business Day preceding the
                  Change of Control Payment Date, a telegram, telex, facsimile
                  transmission or letter setting forth the name of the holder,
                  the principal amount of the Notes delivered for purchase, and
                  a statement that such holder is withdrawing his election to
                  have such Notes purchased;

                           (7) that holders whose Notes are being purchased only
                  in part will be issued new Notes equal in principal amount to
                  the unpurchased portion of the Notes surrendered, provided
                  that each Note purchased and each such new Note issued shall
                  be in an original principal amount in denominations of $1,000
                  and integral multiples thereof; and

                           (8) any other procedures that a holder must follow to
                  accept a Change of Control Offer or effect withdrawal of such
                  acceptance.

                  Notwithstanding any other provision of this Section 2.5, in
the case of a notice of a Change of Control Offer that is being furnished by the
Company with respect to a proposed Change of Control that has not yet actually
occurred, the Company may specify in such notice that holders of the Notes shall
be required to notify the Company, by a date not earlier than the date (the
"Proposed Change of Control Response Date") which is 30 days from the date of
such notice, as to whether such holders will tender their Notes for payment
pursuant to the Change of Control Offer and to notify the Company of the
principal amount of such Notes to be so tendered (with the failure of any holder
to so notify the Company within such 30-day period to be deemed an election of
<PAGE>

such holder not to accept such Change of Control Offer). In such event, the
Company shall have the option, to be exercised by a subsequent written notice to
be sent, no later than 15 days after the Proposed Change of Control Response
Date, to the same Persons to whom the original notice of the Change of Control
Offer was sent, to cancel or otherwise effect the termination of the proposed
Change of Control and to rescind the related Change of Control Offer, in which
case the then outstanding Change of Control Offer shall be deemed to be null and
void and of no further effect.

                  On the Change of Control Payment Date, the Company shall (a)
accept for payment Notes or portions thereof tendered pursuant to the Change of
Control Offer, (b) deposit with the Paying Agent money sufficient to pay the
purchase price of all Notes or portions thereof so tendered and (c) deliver or
cause to be delivered to the Trustee Notes so accepted together with an
Officers' Certificate stating the Notes or portions thereof tendered to the
Company. The Paying Agent shall promptly mail to each holder of Notes so
accepted payment in an amount equal to the purchase price for such Notes, and
the Trustee shall promptly authenticate and mail to such holder a new Note equal
in principal amount to any unpurchased portion of the Notes surrendered;
provided that each such new Note shall be issued in an original principal amount
in denominations of $1,000 and integral multiples thereof.

                  There shall be no purchase of any Notes pursuant to this
covenant if there has occurred (prior to, on or after, as the case may be, the
tender of such Notes pursuant to the Change of Control Offer, by the holders of
such Notes) and is continuing an Event of Default. The Paying Agent will
promptly return to the respective holders thereof any Notes (a) the tender of
which has been withdrawn in compliance with this Indenture or (b) held by it
during the continuance of an Event of Default (other than a default in the
payment of the Change of Control Purchase Price with respect to such Notes).

                  In the event that the Company is required to make a Change of
Control Offer, the Company will comply with all applicable tender offer rules
including Rule 14e-1 under the Exchange Act, to the extent applicable.

ss.2.6.   Events of Default.
          -----------------

                  With respect to the Notes issued under this Supplemental
Indenture, Section 5.1 of the Indenture is hereby replaced in its entirety as
follows:

                  An "Event of Default" occurs with respect to the Notes if:

                           (1) the Company defaults in the payment of any
                  principal of such series of Notes when the same becomes due
                  and payable at maturity, upon acceleration or otherwise;

                           (2) the Company defaults in the payment of any
                  interest on such series of Notes when the same becomes due and
                  payable and the default continues for a period of 30 days;

                           (3) the Company defaults in the observance or
                  performance of any other covenant in such series of Notes or
                  this Indenture for 60 days after written notice from the
                  Trustee or the Holders of not less than 25% in aggregate
                  principal amount of such series of Notes then outstanding;
<PAGE>

                           (4) the Company fails to pay when due principal,
                  interest or premium aggregating $10,000,000 or more with
                  respect to any Indebtedness of the Company or any Restricted
                  Subsidiary, or the acceleration of any such Indebtedness which
                  default shall not be cured or waived, or such acceleration
                  shall not be rescinded or annulled, within ten days after
                  written notice as provided in this Indenture;

                           (5) a court of competent jurisdiction enters a final
                  judgment or judgments for the payment of money in excess of
                  $10,000,000 against the Company or any Restricted Subsidiary
                  and such judgment remains undischarged for a period of 60
                  consecutive days during which a stay of enforcement of such
                  judgment shall not be in effect;

                           (6) the Company, or any Restricted Subsidiary with
                  liabilities of greater than $10,000,000 under GAAP as of the
                  date of the event described in this clause (6), pursuant to or
                  within the meaning of any Bankruptcy Law:

                                            (A)      commences a voluntary case,

                                            (B)      consents to the entry of an
                                                     order for relief against it
                                                     in an involuntary case,

                                            (C)      consents to the appointment
                                                     of a Custodian of it or for
                                                     all or substantially all of
                                                     its property, or

                                            (D)      makes a general assignment
                                                     for the benefit of its
                                                     creditors;

                           (7) a court of competent jurisdiction enters an order
                  or decree under any Bankruptcy Law that:

                                            (A)      is for relief against the
                                                     Company, or any Restricted
                                                     Subsidiary with liabilities
                                                     of greater than $10,000,000
                                                     under GAAP as of the
                                                     effective date of such
                                                     order or decree, in an
                                                     involuntary case,

                                            (B)      appoints a Custodian of the
                                                     Company, or any Restricted
                                                     Subsidiary with liabilities
                                                     of greater than $10,000,000
                                                     under GAAP as of the
                                                     effective date of such
                                                     order or decree, or for all
                                                     or substantially all of its
                                                     property, or

                                            (C)      orders the liquidation of
                                                     the Company, or any
                                                     Restricted Subsidiary with
                                                     liabilities of greater than
                                                     $10,000,000 under GAAP as
                                                     of the effective date of
                                                     such order or decree, and
                                                     the order or decree remains
                                                     unstayed and in effect for
                                                     60 days.

                  A Default under clauses (3) and (4) is not an Event of Default
until the Trustee notifies the Company, or the Holders of at least 25% in
aggregate principal amount of a series of Notes notifies the Company and the
<PAGE>

Trustee, of the Default and the Company does not cure the Default within (a) 60
days after receipt of such notice in the case of a Default under clause (3) and
(b) 10 days after receipt of such notice in the case of a Default under clause
(4). The notice must specify the Default, demand that it be remedied and state
that the notice is a "Notice of Default." If the Holders of at least 25% in
principal amount of a series of outstanding Notes request the Trustee to give
such notice on their behalf, the Trustee shall do so.

ss.2.7.   Acceleration.
          ------------

                  With respect to the Notes issued under this Supplemental
Indenture, Section 5.2 of the Indenture is hereby replaced in its entirety as
follows:

                  If an Event of Default with respect to the Notes (other than
an Event of Default resulting from certain events of bankruptcy, insolvency or
reorganization) occurs and is continuing, the Trustee by notice to the Company,
or the Holders of not less than 25% in aggregate principal amount of the Notes
affected thereby then outstanding may declare to be immediately due and payable
the principal amount of the Notes then outstanding plus accrued but unpaid
interest to the date of acceleration; provided, however, that after such
acceleration but before a judgment or decree based on such acceleration is
obtained by the Trustee, the Holders of a majority in aggregate principal amount
of the outstanding Notes by written notice to the Trustee and the Company may
rescind and annul such acceleration and its consequences if all existing Events
of Default, other than the nonpayment of accelerated principal or interest, have
been cured or waived. In case an Event of Default specified in Section 2.6(6) or
(7) of the Supplemental Indenture occurs, such amount with respect to all of the
Notes shall be due and payable immediately without any declaration or other act
on the part of the Trustee or the Holders of the Notes.

ss.2.8.   Mergers and Consolidations.
          --------------------------

                  With respect to the Notes issued under this Supplemental
Indenture, Section 8.1 of the Indenture is replaced in its entirety as follows:

                  The Company may not consolidate with, merge with or into, or
transfer all or substantially all of its assets (as an entirety or substantially
as an entirety in one transaction or a series of related transactions), to any
Person unless: (i) the Company shall be the continuing Person, or the Person (if
other than the Company) formed by such consolidation or into which the Company
is merged or to which the properties and assets of the Company are transferred
shall be a corporation organized and existing under the laws of the United
States or any State thereof or the District of Columbia and shall expressly
assume, by a supplemental indenture, executed and delivered to the Trustee, in
form satisfactory to the Trustee, all of the obligations of the Company under
the Notes and this Indenture, and the obligations under this Indenture shall
remain in full force and effect; (ii) immediately before and immediately after
giving effect to such transaction, no Default or Event of Default shall have
occurred and be continuing; and (iii) immediately after giving effect to such
transaction on a pro forma basis for the most recent quarter, the pro forma
Consolidated Fixed Charge Ratio of the surviving entity shall be at least 1:1;
provided that, if the Consolidated Fixed Charge Ratio of the Company for the
most recent quarter preceding such transaction is within the range set forth in
Column A below, then the pro forma Consolidated Fixed Charge Ratio of the
surviving entity after giving effect to such transaction shall be at least equal
to the greater of the percentage of the Consolidated Fixed Charge Ratio of the
Company for the most recent quarter preceding such transaction set forth in
<PAGE>

Column B below or the ratio set forth in Column C below:

                         A                            B                   C
                         -                            -                   -

                1.1111:1 to 1.4999:1                  90%               1.00:1
                1.5 and higher                        80%               1.35:1

and provided, further, that if the pro forma Consolidated Fixed Charge Ratio of
the surviving entity is 2:1 or more, the calculation in the preceding proviso
shall be inapplicable and such transaction shall be deemed to have complied with
the requirements of such proviso.

                  In connection with any consolidation, merger or transfer
contemplated by this Section 8.1, the Company shall deliver, or cause to be
delivered, to the Trustee, in form and substance reasonably satisfactory to the
Trustee, an Officers' Certificate and an Opinion of Counsel, each stating that
such consolidation, merger or transfer and the supplemental indenture in respect
thereto comply with this Section 8.1 and that all conditions precedent herein
provided for relating to such transaction or transactions have been complied
with.

ss.2.9.   Supplemental Indentures.
          -----------------------

                  With respect to the Notes issued under this Supplemental
Indenture, the following Section supplements Article 9 of the Indenture:

                  ss.9.7     Revocation and Effect of Consents.

                  Until an amendment, supplement, waiver or other action becomes
effective, a consent to it by a Holder of a Note is a continuing consent
conclusive and binding upon such Holder and every subsequent Holder of the same
Note or portion thereof, and of any Note issued upon the transfer thereof or in
exchange therefor or in place thereof, even if notation of the consent is not
made on any such Note. Any such Holder or subsequent Holder, however, may revoke
the consent as to his Note or portion of a Note, if the Trustee receives the
notice of revocation before the date the amendment, supplement, waiver or other
action becomes effective.

                  The Company may, but shall not be obligated to, fix a record
date for the purpose of determining the Holders entitled to consent to any
amendment, supplement, or waiver. If a record date is fixed, then,
notwithstanding the preceding paragraph, those Persons who were Holders at such
record date (or their duly designated proxies), and only such Persons, shall be
entitled to consent to such amendment, supplement, or waiver or to revoke any
consent previously given, whether or not such Persons continue to be Holders
after such record date. No such consent shall be valid or effective for more
than 90 days after such record date unless the consent of the requisite number
of Holders has been obtained.

                  After an amendment, supplement, waiver or other action becomes
effective, it shall bind every Noteholder, unless it makes a change described in
any of clauses (1) through (4) of Section 9.2 of the Indenture. In that case the
amendment, supplement, waiver or other action shall bind each Holder of a Note
who has consented to it and every subsequent Holder of a Note or portion of a
Note that evidences the same debt as the consenting Holder's Note.
<PAGE>

ss.2.10.  Covenants.
          ---------

                  With respect to the Notes issued under this Supplemental
                  Indenture,

                  (1) references in the Indenture to the following sections are
                      modified as follows:

<TABLE>
<CAPTION>
              Reference in the Indenture to:                            Refers to:
              -----------------------------                             ---------
<S>      <C>                                        <C>
         Section 10.1 of the Indenture              Section 10.1 of the Supplemental Indenture
         Section 10.2 of the Indenture              Not applicable
         Section 10.5 of the Indenture              Section 10.10 of the Supplemental Indenture
         Section 10.7 of the Indenture              Section 10.3 of the Supplemental Indenture
         Section 10.8 of the Indenture              Section 10.8 of the Supplemental Indenture
</TABLE>


              and (2) Article 10 of the Indenture is hereby replaced in its
                      entirety as follows:

                                   ARTICLE 10

                                    COVENANTS

ss.10.1   Payment of Notes.
          ----------------

                  The Company shall pay the principal of and all interest on the
Notes on the dates and in the manner provided in the Notes and this Indenture.
An installment of principal or interest shall be considered paid on the date it
is due if the Trustee or Paying Agent holds on that date money designated for
and sufficient to pay such installment.

                  The Company will pay interest on overdue principal (including
post-petition interest in a proceeding under any Bankruptcy Law) and on overdue
interest, to the extent lawful, at the rate borne by the Notes.

ss.10.2   SEC Reports.
          -----------

                  The Company shall file with the Trustee, within 15 days after
it files with the SEC, copies of the annual reports and of the other
information, documents and reports (or copies of such portions of any of the
foregoing as the SEC may by rules and regulations prescribe), if any, which the
Company is required to file with the SEC pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934, as amended. The Company shall also comply with
the other provisions of TIA ss. 314(a).

ss.10.3   Waiver of Stay, Extension or Usury Laws.
          ---------------------------------------
<PAGE>

                  The Company covenants (to the extent that it may lawfully do
so) that it will not at any time insist upon, or plead (as a defense or
otherwise) or in any manner whatsoever claim or take the benefit or advantage
of, any stay or extension law or any usury law or other law which would prohibit
or forgive the Company from paying all or any portion of the principal of and/or
interest on the Notes as contemplated herein, wherever enacted, now or at any
time hereafter in force, or which may affect the covenants or the performance of
this Indenture; and (to the extent that it may lawfully do so) the Company
hereby expressly waives all benefit or advantage of any such law, and covenants
that it will not hinder, delay or impede the execution of any power herein
granted to the Trustee, but will suffer and permit the execution of every such
power as though no such law had been enacted.

ss.10.4   Limitation on Transactions with Affiliates.
          ------------------------------------------

                  The Company shall not, and shall not permit any Restricted
Subsidiary to, engage in any transaction with any Affiliate upon terms which
would be any less favorable than those obtainable by the Company or a Restricted
Subsidiary in a comparable arm's-length transaction with a Person which is not
an Affiliate. The Company shall not, and shall not permit any Restricted
Subsidiary to, engage in any transaction (or series of related transactions)
involving in the aggregate $1,000,000 or more with any Affiliate except for (i)
the making of any Restricted Payment, (ii) any transaction or series of
transactions between the Company and one or more of its Restricted Subsidiaries
or between two or more of its Restricted Subsidiaries (provided that no more
than 5% of the equity interest in any of its Restricted Subsidiaries is owned by
an Affiliate), and (iii) the payment of compensation (including, without
limitation, amounts paid pursuant to employee benefit plans) for the personal
services of officers, directors and employees of the Company or any of its
Restricted Subsidiaries, so long as the Board of Directors of the Company in
good faith shall have approved the terms thereof and deemed the services
theretofore or thereafter to be performed for such compensation or fees to be
fair consideration therefor; and provided further that for any Asset Sale, or a
sale, transfer or other disposition (other than to the Company or any of its
Restricted Subsidiaries) of an interest in a Restricted Investment, involving an
amount greater than $25,000,000, such Asset Sale or transfer of interest in a
Restricted Investment is for fair value as determined by an opinion of a
nationally recognized investment banking firm filed with the Trustee.
Notwithstanding the foregoing, this provision shall not prohibit any such
transaction which is determined by the independent members of the Board of
Directors of the Company, in their reasonable, good faith judgment (as evidenced
by a Board Resolution filed with the Trustee) to be (a) in the best interests of
the Company or such Restricted Subsidiary, and (b) upon terms which would be
obtainable by the Company or a Restricted Subsidiary in a comparable
arm's-length transaction with a Person which is not an Affiliate.

ss.10.5   Limitation on Indebtedness.
          --------------------------

                  The Company shall not, and shall not permit any Restricted
Subsidiary to, directly or indirectly, create, incur, issue, assume or become
liable for, contingently or otherwise (collectively an "incurrence"), any
Indebtedness unless, after giving effect to such incurrence on a pro forma
basis, Indebtedness of the Company and its Restricted Subsidiaries, on a
consolidated basis, shall not be more than the product of the Annualized Pro
Forma EBITDA for the latest fiscal quarter preceding such incurrence for which
financial statements are available, multiplied by 8.75.

                  Notwithstanding the above, this provision will not limit the
incurrence of Indebtedness which is incurred by the Company or its Restricted
Subsidiaries for working capital purposes or capital expenditures with respect
<PAGE>

to plant, property and equipment of the Company and its Restricted Subsidiaries
in an aggregate amount not to exceed $50,000,000. Further, this provision will
not limit Permitted Refinancing Indebtedness, subject to the provisions of
Section 10.6.

ss.10.6   Limitation on Restricted Payments.
          ---------------------------------

                  So long as any of the Notes remain outstanding, the Company
shall not make, and shall not permit any Restricted Subsidiary to make, any
Restricted Payment if (a) at the time of such proposed Restricted Payment, a
Default or Event of Default shall have occurred and be continuing or shall occur
as a consequence of such Restricted Payment, or (b) immediately after giving
effect to any such Restricted Payment, the aggregate of all Restricted Payments
which shall have been made on or after January 1, 1993 (the amount of any
Restricted Payment, if other than cash, to be based upon fair market value as
determined in good faith by the Company's Board of Directors whose determination
shall be conclusive) would exceed an amount equal to the greater of (i) the sum
of $5,000,000 or (ii) the difference between (a) the Cumulative Credit and (b)
the sum of the aggregate amount of all Restricted Payments, and all Permitted
Investments made pursuant to clause (v) of the definition of "Permitted
Investments," made on or after January 1, 1993 plus 1.2 times Cumulative
Interest Expense.

ss.10.7   Reports to Holders.
          ------------------

                  The Company will send to the Trustee and to Noteholders,
within 15 days after the filing thereof with the SEC, copies of its annual
reports on Form 10-K, its Quarterly Reports on Form 10-Q and its Current Reports
on Form 8-K; provided, however, that notwithstanding any event which results in
the Company being relieved of its obligation to file information, documents and
reports with the SEC pursuant to Sections 13 or 15(d) of the Exchange Act, the
Company shall nevertheless continue, so long as any Note remains outstanding and
unpaid, (i) to file with the SEC (at such time as it would be required to file
such reports under the Exchange Act), and to send to the Trustee and Noteholders
(within 15 days thereafter), quarterly and annual reports and information,
documents and other reports substantially equivalent to those it would have been
obligated to file if it had remained subject to such sections of the Exchange
Act, and (ii) so long as the Notes have not been registered pursuant to the
Registration Rights Agreement, upon the request of a Noteholder, to provide
information required to be delivered under Rule 144A(d)(4) under the Securities
Act to such Noteholder and its prospective purchasers designated by such
Noteholder.

ss.10.8   Money for Securities Payments to Be Held in Trust.
          -------------------------------------------------

                  If the Company shall at any time act as its own Paying Agent
with respect to any series of Securities, it will, on or before each due date of
the principal of (and premium, if any) or interest on any of the Securities of
that series, segregate and hold in trust for the benefit of the Persons entitled
thereto a sum sufficient to pay the principal (and premium, if any) or interest
so becoming due until such sums shall be paid to such Persons or otherwise
disposed of as herein provided and will promptly notify the Trustee of its
action or failure so to act.

                  Whenever the Company shall have one or more Paying Agents for
any series of Securities, it will, prior to each due date of the principal of
(and premium, if any) or interest on any Securities of that series, deposit with
a Paying Agent a sum sufficient to pay the principal (and premium, if any) or
interest so becoming due, such sum to be held in trust for the benefit of the
Persons entitled to such principal, premium or interest, and (unless such Paying
<PAGE>

Agent is the Trustee) the Company will promptly notify the Trustee of its action
or failure to so act.

                  The Company will cause each Paying Agent for any series of
Securities (other than the Trustee) to execute and deliver to the Trustee an
instrument in which such Paying Agent shall agree with the Trustee, subject to
the provisions of this Section, that such Paying Agent will:

                           (i) hold all sums held by it for the payment of the
                  principal of (and premium, if any) or interest on Securities
                  of that series in trust for the benefit of the Persons
                  entitled thereto until such sums shall be paid to such Persons
                  or otherwise disposed of as herein provided;

                           (ii) give the Trustee notice of any default by the
                  Company (or any other obligor upon the Securities of that
                  series) in the making of any payment of principal (and
                  premium, if any) or interest on the Securities of that series;
                  and

                           (iii) at any time during the continuance of any such
                  default, upon the written request of the Trustee, forthwith
                  pay to the Trustee all sums so held in trust by such Paying
                  Agent.

                  The Company may at any time, for the purpose of obtaining the
satisfaction and discharge of this Indenture or for any other purpose, pay, or
by Company Order direct any Paying Agent to pay, to the Trustee all sums held in
trust by the Company or such Paying Agent, such sums to be held by the Trustee
upon the same trusts as those upon which such sums were held by the Company or
such Paying Agent; and, upon such payment by any Paying Agent to the Trustee,
such Paying Agent shall be released from all further liability with respect to
such money.

                  Any money deposited with the Trustee or any Paying Agent, or
then held by the Company, in trust for the payment of the principal of (and
premium, if any) or interest on any security of any series and remaining
unclaimed for two years after such principal (and premium, if any) or interest
has become due and payable shall be paid to the Company on Company Request, or
(if then held by the Company) shall be discharged from such trust; and the
Holder of such security shall thereafter, as an unsecured general creditor, look
only to the Company for payment thereof, unless an abandoned property law
designates another Person, and all liability of the Trustee or such Paying Agent
with respect to such trust money, and all liability of the Company as trustee
thereof, shall thereupon cease; provided, however, that the Trustee of such
Paying Agent, before being required to make any such repayment, may at the
expense of the Company cause to be published once, in a newspaper published in
the English language, customarily published on each Business Day and of general
circulation in New York, New York, notice that such money remains unclaimed and
that, after a date specified therein, which shall not be less than 30 days from
the date of such publication, any unclaimed balance of such money then remaining
will be repaid to the Company.

ss.10.9   Notice of Defaults Or Events of Default.
          ---------------------------------------

                  In the event that any Default or Event of Default shall occur
and be continuing, the Company will, within 10 days of the occurrence thereof,
give written notice of such Default or Event of Default to the Trustee.
<PAGE>

ss.10.10  Compliance Certificates.
          -----------------------

                  The Company shall deliver to the Trustee on or before 105 days
after the end of its fiscal year and on or before 50 days after the end of its
second fiscal quarter in each year an Officers' Certificate stating whether or
not the signers know of any Default or Event of Default. If they do know of such
a Default or Event of Default, the certificate shall describe such Default or
Event of Default and the efforts to remedy or obtain a waiver of the same.

ss.10.11   Covenant to Secure Notes Equally.
           --------------------------------

                  Except for Liens created or assumed by the Company in
connection with the acquisition of real property or equipment to be used by the
Company in the operation of its business which do not secure Indebtedness in
excess of the purchase price of such real property or equipment, the Company
covenants that, if it shall create or assume any Lien upon any of its property
or assets, whether now owned or hereafter acquired, it will make or cause to be
made effective provisions whereby the Notes will be secured by such Lien equally
and ratably with all other Indebtedness of the Company secured by such Lien, as
long as any such other Indebtedness of the Company shall be so secured. The
restriction imposed by this Section shall not apply with respect to a Lien,
including a pledge of Capital Stock of a Subsidiary or an Affiliate, to secure
Indebtedness which is an obligation of such Subsidiary or Affiliate and not an
obligation of the Company.

ss.10.12   Limitation on Investment in Affiliates and Unrestricted Subsidiaries.
           --------------------------------------------------------------------

                  After the date of this Indenture, the Company may not, nor
will the Company allow any Restricted Subsidiary to, make a Restricted
Investment other than by way of Permitted Investments unless pro forma for such
Restricted Investment the Leverage Ratio of the Company does not exceed 7.75:1.

ss.10.13   Limitation on Sale of Assets.
           ----------------------------

                  Neither the Company nor any Restricted Subsidiary of the
Company shall sell an asset (including Capital Stock of Restricted Subsidiaries)
or reclassify a Restricted Subsidiary existing on the date of this Indenture as
an Unrestricted Subsidiary (a "Reclassification") unless (a) in the case of an
asset sale, (i) at least 75% of the net proceeds received by the Company or such
Restricted Subsidiary is in cash, cash equivalents or common or preferred
Capital Stock or debt securities issued by a Person which has Investment Grade
Senior Debt and (ii) cash proceeds from the asset sale are used to reduce debt
and such debt reduction results in the Company's Leverage Ratio being lower pro
forma after such asset sale than prior to such asset sale, or (b) in the case of
an asset sale or Reclassification, pro forma for such asset sale or
Reclassification of the Indebtedness of the Company and its Restricted
Subsidiaries, on a consolidated basis, shall not be more than 7.75 multiplied by
Annualized Pro Forma EBITDA, provided that in no case under either clause (a) or
(b) shall the Company undertake an asset sale or Reclassification, if pro forma
for such an asset sale or Reclassification the Company and its Restricted
Subsidiaries would be the owners of fewer than 75% of the cable systems
(measured on the basis of basic subscribers as of February 22, 1994) owned by
the Company and its Restricted Subsidiaries as of February 22, 1994, provided
however, that the Company and its Restricted Subsidiaries may sell additional
assets of up to 10% of assets held as of February 22, 1994 if the consideration
received from such sale is (i) cash which is used within 12 months to purchase
<PAGE>

additional systems of equivalent value or (ii) other cable systems of equivalent
value.

ss.2.11.  Defeasance and Covenant Defeasance.
          ----------------------------------

                  With respect to the Notes issued under this Supplemental
Indenture, the following Section supplements Article 13 of the Indenture:

                ss. 13.6.  Reinstatement.
                           -------------

                  If the Trustee or Paying Agent is unable to apply any money or
U.S. Government Obligations in accordance with Section 13.1 by reason of any
legal proceeding or by reason of any order or judgment of any court or
governmental authority enjoining, restraining or otherwise prohibiting such
application, the Company's obligations under this Indenture and the Notes shall
be revived and reinstated as though no deposit had occurred pursuant to this
Article 13 until such time as the Trustee or Paying Agent is permitted to apply
all such money or U.S. Government Obligations in accordance with Section 13.1;
provided, however, that if the Company has made any payment of principal of or
accrued interest on any Notes because of the reinstatement of its obligations,
the Company shall be subrogated to the rights of the Holders of such Notes to
receive such payment from the money or U.S. Government Obligations held by the
Trustee or Paying Agent.

ss.2.12.  Designated Senior Debt.
          ----------------------

                  The Notes shall be Designated Senior Debt for purposes of the
Subordinated Debt Indenture.


                                    ARTICLE 3

                                  MISCELLANEOUS

ss.3.1.   Effect of Headings.
          ------------------

                  The Article and Section headings herein are for convenience
only and shall not affect the construction hereof.

ss.3.2.   Successors and Assigns.
          ----------------------

                  All covenants and agreements in this Supplemental Indenture by
the Company shall bind its successors and assigns, whether so expressed or not.

ss.3.3.   Separability Clause.
          -------------------

                  In case any provision in this Supplemental Indenture or in the
Securities shall be invalid, illegal or unenforceable, the validity, legality
and enforceability of the remaining provisions shall not in any way be affected
or impaired thereby.
<PAGE>

ss.3.4.   Governing Law.
          -------------

                  This Supplemental Indenture and the Notes created hereby shall
be governed by and construed in accordance with the laws (other than the choice
of law provisions) of the State of New York.


           [The rest of this page has been intentionally left blank.]


<PAGE>

                  IN WITNESS WHEREOF, the parties have caused this Supplemental
Indenture to be duly  executed, and attested, all as of the date and year first
written above.

                                               ADELPHIA COMMUNICATIONS
                                               CORPORATION


                                               By:      /s/ James P. Rigas
                                               Name:    James P. Rigas
                                               Title:   Executive Vice President





<PAGE>

                                               THE BANK OF NEW YORK, as Trustee


                                               By:      /s/ Mary LaGumina
                                               Name:    Mary LaGumina
                                               Title:   Vice President




<PAGE>


                                                                       Exhibit A


--------------------------------------------------------------------------------





--------------------------------------------------------------------------------


                                 [Face of Note]
                          10 1/4% Senior Notes due 2011

CUSIP No.  006848 BJ 3                                            $_____________
No. __


                       ADELPHIA COMMUNICATIONS CORPORATION

promises to pay to Cede & Co. or registered assigns, the principal sum of
__________ Dollars on June 15, 2011.

                  Interest Payment Dates:  June 15 and December 15

                  Record Dates:  June 1 and December 1

                  Dated:  June 12, 2001


                                           ADELPHIA COMMUNICATIONS CORPORATION



                                           By
                                           -------------------------------------
                                           Name:  James P. Rigas
                                           Title:    Executive Vice President

                                                         (SEAL)

This is one of the Notes
referred to in the within-
mentioned Indenture:

THE BANK OF NEW YORK,
as Trustee


By:
      -----------------------------------------------
      Authorized Signature


<PAGE>


                                 [Back of Note]
                          10 1/4% Senior Notes due 2011
                  Unless and until it is exchanged in whole or in part for Notes
in definitive form, this Note may not be transferred except as a whole by the
Depository to a nominee of the Depository or by a nominee of the Depository to
the Depository or another nominee of the Depository or by the Depository or any
such nominee to a successor Depository or a nominee of such successor
Depository. Unless this certificate is presented by an authorized representative
of The Depository Trust Company (55 Water Street, New York, New York) ("DTC"),
to the issuer or its agent for registration of transfer, exchange or payment,
and any certificate issued is registered in the name of Cede & Co. or such other
name as may be requested by an authorized representative of DTC (and any payment
is made to Cede & Co. or such other entity as may be requested by an authorized
representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner
hereof, Cede & Co., has an interest herein.

                  Capitalized terms used herein shall have the meanings assigned
to them in the Indenture referred to below unless otherwise indicated.

                  1. INTEREST. Adelphia Communications Corporation, a Delaware
corporation (the "Company") promises to pay interest on the principal amount of
this Note at 10 1/4% per annum from June 12, 2001 until June 15, 2011. The
Company shall pay interest, semi-annually in arrears on June 15 and December 15
of each year, or if any such day is not a Business Day, on the next succeeding
Business Day (each an "Interest Payment Date"). Interest on the Notes will
accrue from the most recent date to which interest has been paid or, if no
interest has been paid, from the date of issuance; provided that if there is no
existing Default in the payment of interest, and if this Note is authenticated
between a record date referred to on the face hereof and the next succeeding
Interest Payment Date, interest shall accrue from such next succeeding Interest
Payment Date; provided, further, that the first Interest Payment Date shall be
December 15, 2001. The Company shall pay interest (including post-petition
interest in any proceeding under any Bankruptcy Law) on overdue principal from
time to time on demand at a rate equal to the per annum rate on the Notes then
in effect; it shall pay interest (including post-petition interest in any
proceeding under any Bankruptcy Law) on overdue installments of interest
(without regard to any applicable grace periods) from time to time on demand at
the same rate to the extent lawful. Interest will be computed on the basis of a
360-day year of twelve 30-day months.

                  2. METHOD OF PAYMENT. The Company shall make payments in
respect of the Notes represented by the Global Notes (including principal and
interest) by wire transfer of immediately available funds to the accounts
specified by the Note Custodian. With respect to Notes issued in definitive
form, the Company shall make all payments of principal and interest by mailing a
check to each such Holder's registered address, provided that all payments with
respect to Notes having an aggregate principal amount of $100,000 or more, the
Holders of which have given wire transfer instructions to the Company at least
ten business days prior to the applicable payment date, will be required to be
made by wire transfer of immediately available funds to the accounts specified
by the Holders thereof. The Notes represented by the Global Notes are expected
to be eligible to trade in DTC's Same-Day Funds Settlement System, and any
permitted secondary market trading activity in such notes will, therefore, be
required by DTC to be settled in immediately available funds. The Company
expects that secondary trading in the Definitive Notes also will be settled in
immediately available funds.

                  3. PAYING AGENT AND SECURITY REGISTRAR. Initially, The Bank of
New York, the Trustee under the Indenture, will act as Paying Agent and Security
Registrar. The Notes may be presented for registration of transfer and exchange
at the offices of the Security Registrar. The Company may change any Paying
<PAGE>

Agent or Security Registrar without notice to any Holder. The Company or any of
its Subsidiaries may act in any such capacity.

                  4. INDENTURE. The Company issued the Notes under an Indenture
dated as of April 28, 1999 (the "Base Indenture") as supplemented by a Fourth
Supplemental Indenture dated as of June 12, 2011 (the "Supplemental Indenture"
and, together with the Base Indenture, the "Indenture" ) between the Company and
the Trustee. The terms of the Notes include those stated in the Indenture and
those made part of the Indenture by reference to the Trust Indenture Act of
1939, as amended (15 U.S. Code ss.ss. 77aaa-77bbbb). The Notes are subject to
all such terms, and Holders are referred to the Indenture and such Act for a
statement of such terms. The Notes issued under the Indenture are senior
unsecured obligations of the Company limited to $1 billion in aggregate
principal amount.

                  5. MANDATORY REDEMPTION. Except as set forth in paragraph 6
below, the Company shall not be required to make mandatory redemption payments
with respect to the Notes.

                  6. REPURCHASE AT OPTION OF HOLDER. Within 50 days of (i) the
proposed occurrence of a Change of Control or (ii) the occurrence of Change of
Control Triggering Event, the Company shall be required to make an offer (a
"Change of Control Offer") to repurchase all or any part (equal to $1,000 or an
integral multiple thereof) of each Holder's Notes at a purchase price equal to
100% of the principal amount thereof plus accrued and unpaid interest and
Liquidated Damages thereon, if any, to the date of purchase, which date shall be
no later than 50 days from the date such notice is mailed (the "Change of
Control Payment Date"). Within 50 days of (i) the proposed occurrence of a
Change of Control or (ii) the occurrence of Change of Control Triggering Event,
the Company shall mail a notice to each Holder setting forth the procedures
governing the Change of Control Offer as required by the Indenture. Such right
to require the repurchase of Notes shall not continue after discharge of the
Company from its obligations with respect to the Notes. The board of directors
of the Company may not waive this provision.

                  7. DENOMINATIONS, TRANSFER, EXCHANGE. The Notes are in
registered form without coupons in minimum denominations of $1,000 and integral
multiples of $1,000 in excess thereof. The transfer of Notes may be registered
and Notes may be exchanged as provided in the Indenture.

                  8. PERSONS DEEMED OWNERS. The registered Holder of a Note may
be treated as its owner for all purposes.

                  9. AMENDMENT, SUPPLEMENT AND WAIVER. Subject to certain
exceptions, the Indenture with respect to the Notes or the Notes may be amended
or supplemented with the written consent of the Holders of a majority in
principal amount of the Notes voting as a single class, and any existing default
or compliance with any provision of the Indenture with respect to the Notes or
the Notes may be waived with the consent of the Holders of a majority in
principal amount of the Notes voting as a single class. Without the consent of
any Holder of the Notes, the Indenture with respect to the Notes or the Notes
may be amended or supplemented to, in addition to other events more fully
described in the Indenture, to cure any ambiguity, defect or inconsistency, to
establish the form or terms of the Notes as permitted by Sections 2.1 and 3.1 of
the Indenture, to evidence the succession of another corporation to the Company
and the assumption by any such successor of the covenants of the Company
contained in the Indenture, to secure the Notes, to make any change that does
not materially adversely affect the interests of any Holder under the Indenture
or to qualify or maintain the qualification of the Indenture under the Trust
Indenture Act.
<PAGE>

                  10. DEFAULTS AND REMEDIES. An Event of Default with respect to
the Notes occurs if: (i) the Company defaults in the payment when due of any
interest on, or Liquidated Damages with respect to, any such series of Notes and
such default continues for a period of 30 days; (ii) the Company defaults in the
payment of the principal of any such series of Notes at its maturity; (iii) the
Company fails to observe or perform any other covenant, representation, warranty
or other agreement in the Indenture or the Notes for 60 days after written
notice to the Company by the Trustee or the Holders of at least 25% in principal
amount of such series of Notes then outstanding; (iv) the Company fails to pay
when due principal, interest or premium aggregating $10,000,000 or more with
respect to any Indebtedness of the Company or any Restricted Subsidiary, or the
acceleration of any such Indebtedness which default shall not be cured or
waived, or such acceleration shall not be rescinded or annulled, within 10 days
after written notice; (v) a final judgment or final judgments for the payment of
money are entered by a court or courts of competent jurisdiction against the
Company or any of its Restricted Subsidiaries and such judgment or judgments
remain undischarged for a period (during which execution shall not be
effectively stayed) of 60 days, provided that the aggregate of all such
judgments exceeds $10,000,000; or (vi) the Company or any Restricted Subsidiary
with liabilities of greater than $10,000,000 under GAAP as of the date of the
event described in this clause, pursuant to or within the meaning of Bankruptcy
Law: (a) commences a voluntary case, (b) consents to the entry of an order for
relief against it in an involuntary case, (c) consents to the appointment of a
Custodian of it or for all or substantially all of its property, or (d) makes a
general assignment for the benefit of its creditors, (vii) a court of competent
jurisdiction enters an order or decree under any Bankruptcy Law that: (a) is for
relief against the Company, or any Restricted Subsidiary with liabilities of
greater than $10,000,000 under GAAP as of the effective date of such order or
decree in an involuntary case, (b) appoints a custodian of the Company, or any
Restricted Subsidiary of Restricted Subsidiary with liabilities of greater than
$10,000,000 under GAAP as of the effective date of such order or decree or for
all or substantially all of its property or (c) orders the liquidation of the
Company, or any Restricted Subsidiary with liabilities greater than $10,000,000
under GAAP as of the effective date of such order or decree; and the order or
decree remains unstayed and in effect for 60 consecutive days. If any Event of
Default occurs and is continuing, the Trustee or the Holders of at least 25% in
principal amount of the then outstanding series of Notes (including Additional
Notes, if any) may declare all of such Notes to be due and payable immediately.
Notwithstanding the foregoing, in the case an Event of Default specified in
clauses (6) or (7) of Section 5.1 of the Indenture occurs with respect to the
Company, or a Restricted Subsidiary with liabilities of greater than $10,000,000
under GAAP as of the effective date of such order or decree, all outstanding
series of Notes will become due and payable without further action or notice.
Holders of such series of Notes may not enforce the Indenture with respect to
such series of Notes or such series of Notes except as provided in the
Indenture. Subject to certain limitations, Holders of a majority in principal
amount of the then outstanding series of Notes may direct the Trustee in its
exercise of any trust or power. The Trustee may withhold from Holders of such
series of Notes notice of any continuing Default or Event of Default (except a
Default or Event of Default relating to the payment of principal or interest) if
it determines that withholding notice is in their interest. The Holders of not
less than a majority in aggregate principal amount of the such series of Notes
then outstanding by notice to the Trustee may on behalf of the Holders of all of
the Notes waive any existing Default or Event of Default and its consequences
under the Indenture, except a continuing Default or Event of Default in the
payment of the principal of and Liquidated Damages, if any, or interest on, such
series of Notes (provided, however, that the Holders of a majority in aggregate
principal amount of the then outstanding series of Notes may rescind an
acceleration and its consequence, including any related payment default) or a
default with respect to any covenant or provision which cannot be modified or
amended without the consent of the Holder of each outstanding Note affected.

                  The Company is required to deliver to the Trustee annually a
statement regarding compliance with the Indenture, and the Company is required,
upon becoming aware of any Default or Event of Default, to deliver to the
<PAGE>

Trustee a statement specifying such Default or Event of Default and what action
the Company is taking or proposes to take thereto.

                  11. TRUSTEE DEALINGS WITH COMPANY. The Trustee, in its
individual or any other capacity, may make loans to, accept deposits from, and
perform services for the Company or its Affiliates, and may otherwise deal with
the Company or its Affiliates, as if it were not the Trustee.

                  12. NO RECOURSE AGAINST OTHERS. A director, officer, employee,
incorporator or stockholder of the Company, as such, shall not have any
liability for any obligations of the Company under the Notes or the Indenture or
for any claim based on, in respect of, or by reason of, such obligations or
their creation. Each Holder by accepting a Note waives and releases all such
liability including any rights against any general partner of the Company in its
capacity as general partner. The waiver and release are part of the
consideration for the issuance of the Notes.

                  13. AUTHENTICATION. This Note shall not be valid until
authenticated by the manual signature of the Trustee or an authenticating agent.

                  14. ABBREVIATIONS. Customary abbreviations may be used in the
name of a Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT
(= tenants by the entireties), JT TEN (= joint tenants with right of
survivorship and not as tenants in common), CUST (= Custodian), and U/G/M/A (=
Uniform Gifts to Minors Act).

                  15. CUSIP NUMBERS. Pursuant to a recommendation promulgated by
the Committee on Uniform Security Identification Procedures, the Company has
caused CUSIP numbers to be printed on the Notes and the Trustee may use CUSIP
numbers in notices of redemption as a convenience to Holders. No representation
is made as to the accuracy of such numbers either as printed on the Notes or as
contained in any notice of redemption and reliance may be placed only on the
other identification numbers placed thereon.

                  The Company shall furnish to any Holder upon written request
and without charge a copy of the Indenture. Requests may be made to:

                           Adelphia Communications Corporation
                           One North Main Street
                           Coudersport, Pennsylvania 16915
                           Attention:  Colin H. Higgin, Esq.



<PAGE>


                                 ASSIGNMENT FORM


            To assign this Note, fill in the form below: (I) or (we)
                        assign and transfer this Note to


                  (Insert assignee's soc. sec. or tax I.D. no.)








              (Print or type assignee's name, address and zip code)

and irrevocably appoint
                        --------------------------------------------------------
to transfer this Note on the books of the Company. The agent may substitute
another to act for him.




Date:  __________

                    Your Signature:
                                   ---------------------------------------------
                    (Sign exactly as your name appears on the face of this Note)



<PAGE>



                       OPTION OF HOLDER TO ELECT PURCHASE


                  If you want to elect to have this Note purchased by the
Company pursuant to Section 2.5 of the Supplemental Indenture, check the box
below:

                                   Section 2.5

                  If you want to elect to have only part of the Note purchased
by the Company pursuant to Section 2.5 of the Supplemental Indenture, state the
amount you elect to have purchased: $________


Date:  __________                Your Signature:
                                                --------------------------------
                                 (Sign exactly as your name appears on the Note)

                                 Tax Identification No.:
                                                        ------------------------


<PAGE>


                         SCHEDULE OF EXCHANGES OF NOTES


                  The following exchanges of a part of this Global Note for
other Notes have been made:

<TABLE>
<CAPTION>
<S>                     <C>                     <C>                     <C>                      <C>
                                                                           Principal Amount of       Signature of
                           Amount of decrease    Amount of increase in      this Global Note       authorized office
                           in Principal Amount    Principal Amount of        following such       of Trustee or Note
    Date of Exchange       of this Global Note      this Global Note     decrease (or increase)        Custodian
----------------------- ----------------------- ----------------------- ------------------------ ---------------------
</TABLE>