Document:

<Page>

                                                                   Exhibit 10.34

                                                                  EXECUTION COPY

                                AMENDMENT NO. 1

                            Dated as of July 20, 2001

                                       to

                  SEVENTH AMENDED AND RESTATED CREDIT AGREEMENT

                            Dated as of June 26, 2001

     CSC HOLDINGS, INC. (formerly known as Cablevision Systems Corporation), a
Delaware corporation (the "Company"), the Restricted Subsidiaries (as defined in
the Credit Agreement referred to below) that are parties to such Credit
Agreement, the banks that are parties to such Credit Agreement (the "Banks") and
TORONTO DOMINION (TEXAS), INC., as Administrative Agent (the "Administrative
Agent"), agree as follows:

                                    ARTICLE I

                                    AMENDMENT

     Section 1.1. CREDIT AGREEMENT. Reference is made to the Seventh Amended &
Restated Credit Agreement dated as of June 26, 2001 (the "Credit Agreement")
among the Company, the Restricted Subsidiaries party thereto, the Banks, the
Administrative Agent, TD Securities (USA) Inc. and Banc of America Securities
LLC, as Co-Lead Arrangers and Co-Book Managers, Bank of America, N.A., as
Syndication Agent, The Bank of New York and The Bank of Nova Scotia, as
Co-Documentation Agents and Arrangers, The Chase Manhattan Bank, as
Co-Documentation Agent, Fleet National Bank, J.P. Morgan Securities Inc., Mizuho
Financial Group and Salomon Smith Barney Inc., as Arrangers, Bank of Montreal,
Barclays Bank plc, BNP Paribas, Credit Lyonnais New York Branch, Dresdner Bank
AG, New York and Grand Cayman Branches, First Union National Bank and Royal Bank
of Canada, as Managing Agents and Societe Generale and SunTrust Bank, as
Co-Agents. Terms used in this Amendment No. 1 (this "Amendment") that are not
otherwise defined herein shall have the meanings given to such terms in the
Credit Agreement. The Credit Agreement as amended by this Amendment (the
"Amended Credit Agreement") is and shall continue to be in full force and effect
and is hereby in all respects ratified and confirmed.

     Section 1.2. AMENDMENT. Upon and after the Effective Date (as defined in
Section 1.3 hereof):

     (a)  The definition of "Annualized Operating Cash Flow" in Section 1.01 of
          the Credit Agreement shall be amended and restated in its entirety as
          follows:

<Page>

     "ANNUALIZED OPERATING CASH FLOW" shall mean, as at any date, an amount
     equal to Operating Cash Flow for the period of three complete consecutive
     calendar months ending on or most recently prior to such date, multiplied
     by four.

     (b)  The definition of "Cash Flow Ratio" in Section 1.01 of the Credit
          Agreement shall be amended and restated in its entirety as follows:

     "CASH FLOW RATIO" shall mean, as at any date, the ratio of (i) the sum of
     the aggregate outstanding principal amount of all Indebtedness of the
     Company and the Restricted Subsidiaries outstanding on such date
     (determined on a consolidated basis) PLUS (but without duplication of
     Indebtedness supported by Syndicated Letters of Credit or Bank Letters of
     Credit) the aggregate undrawn face amount of all Syndicated Letters of
     Credit and Bank Letters of Credit outstanding on such date to (ii)
     Annualized Operating Cash Flow determined as at the last day of (A) in the
     case of calculating the Cash Flow Ratio for purposes of Section 3.03, the
     quarter covered by the then most recent Compliance Certificate delivered to
     the Banks pursuant to Section 9.01(d) hereof and (B) in the case of
     calculating the Cash Flow Ratio for purposes of Section 9.22, the month
     covered by the then most recent certificate delivered to the Banks pursuant
     to Section 9.01(h) hereof, in each case a copy of which has been delivered
     to the Administrative Agent (and any change in such ratio as a result of a
     change in the amount of Indebtedness or Syndicated Letters of Credit, or
     Bank Letters of Credit shall be effective as of the date such change shall
     occur and any change in such ratio as a result of a change in the amount of
     Annualized Operating Cash Flow shall be effective as of the date of receipt
     by the Administrative Agent of the Compliance Certificate or the
     certificate delivered pursuant to Section 9.01(h) hereof, as the case may
     be, reflecting such change). Notwithstanding the foregoing, for purposes of
     calculating the Cash Flow Ratio, (i) there shall be excluded from
     Indebtedness, to the extent otherwise included as Indebtedness, (A) any
     deferred or contingent obligation of the Company to pay the consideration
     for an Investment not prohibited by Section 9.15 hereof to the extent such
     obligation can be satisfied with the delivery of common stock of the Parent
     Corp. or other equity interests of the Parent and the Company covenants and
     agrees in a notice to the Administrative Agent that such obligation shall
     be satisfied solely by the delivery of such common stock or other equity
     interests; (B) any deferred purchase price in connection with any
     acquisition not prohibited by Section 9.14 to the extent that the Company's
     obligations in respect of such deferred purchase price consist solely of an
     agreement to deliver common stock of the Parent Corp. or other equity
     interests of the Parent; (C) all obligations under any Interest Swap
     Agreement; and (D)(x) all obligations under any Guarantee permitted under
     subparagraph (viii) of Section 9.11 hereof and (y) all obligations under
     any Guarantee not prohibited by Section 9.11 hereof so long as the
     obligations under such Guarantees referred to in this clause (y) are
     payable, solely at the option of the Company, in common stock of the Parent
     Corp. or other equity interests of the Parent and the Company covenants and
     agrees in a notice to the Administrative Agent that such obligation shall
     be satisfied solely by the delivery of such common stock or other equity
     interests; and (ii) if on the date of calculation there are no Loans
     outstanding, there shall be deducted from Indebtedness the aggregate amount
     of Cash On Hand of the Company and its Restricted Subsidiaries on the date
     of calculation.

                                        2
<Page>

     (c)  Section 9.01 of the Credit Agreement shall be amended by inserting
          after clause (g) thereof a new clause (h) thereto to read in its
          entirety as follows:

     (h) Within 35 days after the end of each calendar month, a certificate of a
     senior financial executive of the Company in substantially the form of
     Exhibit H hereto as at the last day of such month.

     (d)  The Credit Agreement shall be amended by inserting as Exhibit H
          thereto a certificate in the form of Exhibit A hereto.

     Section 1.3. EFFECTIVE DATE. This Amendment shall become effective as of
the date first written above (the "Effective Date") on the first date when this
Amendment shall have been duly executed and delivered by the Company, each of
the Restricted Subsidiaries that are parties to the Credit Agreement, the
Administrative Agent and the Majority Banks.

                                   ARTICLE II

                         REPRESENTATIONS AND WARRANTIES

     Section 2.1. REPRESENTATIONS AND WARRANTIES. Each of the Company and the
Restricted Subsidiaries that are parties to the Credit Agreement represents and
warrants as follows:

          (a) POWER; BINDING AGREEMENTS. Each of the Company and such Restricted
Subsidiaries has full power, authority and legal right to make and perform this
Amendment and the Amended Credit Agreement. This Amendment and the Amended
Credit Agreement constitute the legal, valid and binding obligations of each of
the Company and such Restricted Subsidiaries, enforceable in accordance with
their terms (except for limitations on enforceability under bankruptcy,
reorganization, insolvency and other similar laws affecting creditors' rights
generally and limitations on the availability of the remedy of specific
performance imposed by the application of general equitable principles).

          (b) AUTHORITY; NO CONFLICT. The making and performance of this
Amendment and the Amended Credit Agreement by each of the Company and such
Restricted Subsidiaries have been duly authorized by all necessary action and do
not and will not (i) violate any provision of any laws, orders, rules or
regulations presently in effect (other than violations that, singly or in the
aggregate, have not had and are not likely to have a Materially Adverse Effect),
or any provision of any of the Company's or the Restricted Subsidiaries'
respective partnership agreements, charters or by-laws presently in effect;
(ii)result in the breach of, or constitute a default or require any consent
under, any existing indenture or other agreement or instrument to which the
Company or any of the Restricted Subsidiaries is a party or by which their
respective properties may be bound or affected (other than any breach, default
or required consent that, singly or in the aggregate, have not had and are not
likely to have a Materially Adverse Effect); or (iii) result in, or require, the
creation or imposition of any Lien upon or with respect to any of the properties
or assets now owned or hereafter acquired by the Company or any of the
Restricted Subsidiaries.

                                        3
<Page>

          (c) APPROVAL OF REGULATORY AUTHORITIES. No approval or consent of, or
filing or registration with, any federal, state or local commission or other
regulatory authority is required in connection with the execution, delivery and
performance by the Company and such Restricted Subsidiaries of this Amendment
and the Amended Credit Agreement.

     Section 2.2. SURVIVAL. Each of the foregoing representations and warranties
shall be made at and as of the Effective Date and shall constitute a
representation and warranty of the Company and the Restricted Subsidiaries made
under the Amended Credit Agreement and it shall be an Event of Default if any
such representation and warranty shall prove to have been incorrect or
misleading in any material respect when made. Each of the representations and
warranties made under the Amended Credit Agreement (and including those
representations and warranties made herein) shall survive and not be waived by
the execution and delivery of this Amendment.

                                   ARTICLE III

                                  MISCELLANEOUS

     Section 3.1. GOVERNING LAW. This Amendment shall be construed in accordance
with and governed by the laws of the State of New York.

     Section 3.2. COUNTERPARTS. This Amendment may be executed in any number of
counterparts, each of which shall be deemed to be an original, but all such
separate counterparts shall together constitute but one and the same instrument.

     Section 3.3. EXPENSES. The Company hereby agrees to pay or reimburse the
Administrative Agent for all reasonable fees and expenses, including attorneys'
fees, incurred in connection with the negotiation, preparation, execution and
delivery of this Amendment.

              [THE REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]

                                        4
<Page>

     IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
duly executed as of the day and year first above written.

                    CSC HOLDINGS, INC.

                  By /s/ John Bier
                      ----------------------------------------------------------
                      Name:  John Bier
                      Title: Authorized Signatory

                    CABLEVISION OF CONNECTICUT CORPORATION

                    CABLEVISION AREA 9 CORPORATION

                    CABLEVISION FAIRFIELD CORPORATION

                    COMMUNICATIONS DEVELOPMENT CORPORATION

                    CABLEVISION SYSTEMS DUTCHESS CORPORATION

                    CABLEVISION SYSTEMS EAST HAMPTON CORPORATION

                    CABLEVISION SYSTEMS GREAT NECK CORPORATION

                    CABLEVISION SYSTEMS HUNTINGTON CORPORATION

                    CABLEVISION SYSTEMS ISLIP CORPORATION

                    CABLEVISION SYSTEMS LONG ISLAND CORPORATION

                    CABLEVISION SYSTEMS SUFFOLK CORPORATION

                    CABLEVISION SYSTEMS WESTCHESTER CORPORATION

                                                                 Amendment No. 1

<Page>

                    CABLEVISION OF CLEVELAND G.P., INC.

                    CABLEVISION OF CLEVELAND L.P., INC.

                    TELERAMA, INC.

                    CABLEVISION OF THE MIDWEST HOLDING CO., INC.

                    CSC ACQUISITION CORPORATION

                    CSC ACQUISITION - NY, INC.

                    CSC ACQUISITION - MA, INC.

                    A-R CABLE SERVICES - NY, INC.

                    CABLEVISION LIGHTPATH, INC.

                    CABLEVISION OF BROOKLINE, INC.

                    CABLEVISION SYSTEMS BROOKLINE CORPORATION

                    ARSENAL MSUB 2, INC.

                    PETRA CABLEVISION CORPORATION

                    SUFFOLK CABLE CORPORATION

                    SAMSON CABLEVISION CORP.

                    SUFFOLK CABLE OF SMITHTOWN, INC.

                    SUFFOLK CABLE OF SHELTER ISLAND, INC.

                    CABLEVISION SYSTEMS NEW YORK CITY CORPORATION

                    CABLEVISION OF WAPPINGERS FALLS, INC.

                                                                 Amendment No. 1

<Page>

                    CABLEVISION OF BROOKHAVEN, INC.

                    CABLEVISION OF SOUTHERN WESTCHESTER, INC.

                    CABLEVISION OF OAKLAND, INC.

                    CABLEVISION OF PATERSON, INC.

                    CABLEVISION OF ROCKLAND/RAMAPO, INC.

                    CABLEVISION OF WARWICK, INC.

                    MONTAGUE CABLE COMPANY, INC.

                    CSC TKR, INC.

                    CSC TKR I, INC.

                    CABLEVISION MFR, INC.

                    CABLEVISION OF MONMOUTH, INC.

                    CABLEVISION OF HUDSON COUNTY, INC.

                    CABLEVISION OF NEW JERSEY, INC.

                    CSC GATEWAY CORPORATION

                    CABLEVISION OF LITCHFIELD, INC.

                    151 S. FULTON STREET CORPORATION

                    By /s/ John Bier
                      ----------------------------------------------------------
                      Name:  John Bier
                      Title: Authorized Signatory

                             of each of the above-named corporations

                                                                 Amendment No. 1

<Page>

                    CSC GATEWAY CORPORATION
                    CABLEVISION OF NEW JERSEY, INC.,
                    each a General Partner of Cablevision of Newark

                    CABLEVISION OF NEW JERSEY, INC.
                    CSC GATWEWAY CORPORATION
                    each a General Partner of Cablevision of Newark

                    CABLEVISION SYSTEMS BROOKLINE
                    CORPORATION Managing General Partner
                    of Cablevision of Ossining, L.P.

                    CABLEVISION AREA 9 CORPORATION,
                    General Partner of Cablevision of
                    Connecticut, L.P.

                    CABLEVISION OF CLEVELAND G.P., INC.,
                    General Partner of Cablevision of Cleveland, L.P.

                    CABLEVISION FAIRFIELD CORPORATION,
                    General Partner of Cablevision
                    Systems of Southern Connecticut,
                    L.P.

                    CSC TKR, INC.,
                    General Partner of KRC/CCC Investment Partnership

                  By /s/ John Bier
                      ----------------------------------------------------------
                      Name:  John Bier
                      Title: Authorized Signatory
                    of each of the above corporate general partners

                                                                 Amendment No. 1

<Page>

                    TORONTO DOMINION (TEXAS), INC., as
                      Administrative Agent and a Bank

                    By /s/ Neva Nesbitt
                      ----------------------------------------------------------
                      Name:  Neva Nesbitt
                      Title: Vice President

                    TD SECURITIES (USA) INC., as
                      Co-Lead Arranger and Co-Book Manager

                    By /s/ Amy G. Josephson
                      ----------------------------------------------------------
                      Name:  Amy G. Josephson
                      Title: Managing Director

                    BANC OF AMERICA SECURITIES LLC,
                      as Co-Lead Arranger and Co-Book Manager

                    By /s/ Barbara P. Jorgensen
                      ----------------------------------------------------------
                      Name:  Barbara P. Jorgensen
                      Title: Managing Director

                    BANK OF AMERICA, N.A., as Syndication Agent and a
                      Bank

                    By /s/ Todd Shipley
                      ----------------------------------------------------------
                      Name:  Todd Shipley
                      Title: Managing Director

                    THE BANK OF NEW YORK,
                      as a Bank, Arranger and Co-Documentation Agent

                    By /s/ Brendan Nedzi
                      ----------------------------------------------------------
                      Name:  Brendan Nedzi
                      Title: Senior Vice Presidnent

                                                                 Amendment No. 1

<Page>

                    THE BANK OF NOVA SCOTIA, as a Bank,
                    Arranger and Co-Documentation Agent

                    By /s/ P.A. Weissenberger
                      ----------------------------------------------------------
                      Name:  P.a. Weissenberger
                      Title: Authorized Sitgnatory

                    THE CHASE MANHATTAN BANK, as a Bank and
                    Co-Documentation Agent

                    By /s/ Peter B. Thaver
                      ----------------------------------------------------------
                      Name:  Peter B. Thaver
                      Title: Vice President

                    FLEET NATIONAL BANK, as a Bank and Arranger

                    By /s/ Arthur S. Torrey
                      ----------------------------------------------------------
                      Name:  Arthur S. Torrey
                      Title: Vice President

                    SALOMON SMITH BARNEY INC., as Arranger

                    By /s/ Suzanne Crymas
                      ----------------------------------------------------------
                      Name:  Suzanne Crymas
                      Title: Vice President

                    CITIBANK, N.A., as a Bank

                    By /s/ Suzanne Crymas
                      ----------------------------------------------------------
                      Name:  Suzanne Crymas
                      Title: Vice President

                                                                 Amendment No. 1

<Page>

                    THE DAI-ICHI KANGYO BANK, LTD
                    (d/b/a MIZUHO FINANCIAL GROUP)
                      as a Bank and Arranger

                    By /s/ Scott A. DeHaas
                      ----------------------------------------------------------
                      Name:  Scott A. DeHaas
                      Title: Credit Officer

                    THE FUJI BANK, LTD
                    (d/b/a MIZUHO FINANCIAL GROUP)
                      as a Bank and Arranger

                    By /s/ Raymond Ventura
                      ----------------------------------------------------------
                      Name:  Raymond Ventura
                      Title: Senior Vice President

                    BANK OF MONTREAL, as a Bank and a Managing Agent

                    By /s/ Sarah Kim
                      ----------------------------------------------------------
                      Name:  Sarah Kim
                      Title: Director

                    BARCLAYS BANK PLC, as a Bank and a Managing          Agent

                    By /s/ Timorthy C. Harrington
                      ----------------------------------------------------------
                      Name:  Timorthy C. Harrington
                      Title: Director

                    BNP PARIBAS, as a Bank and a Managing Agent

                    By
                      ----------------------------------------------------------
                      Name:
                      Title:

                    By
                      ----------------------------------------------------------
                      Name:
                      Title:

                                                                 Amendment No. 1

<Page>

                    CREDIT LYONNAIS NEW YORK BRANCH, as a Bank
                      and a Managing Agent

                    By /s/ Jeremy Horn
                      ----------------------------------------------------------
                      Name:  Jeremy Horn
                      Title: Authorized Signature

                    DRESDNER BANK AG, NEW YORK AND GRAND
                    CAYMAN BRANCHES, as a Bank and a Managing Agent

                    By /s/ William E. Lambert
                      ----------------------------------------------------------
                      Name:  William E. Lambert
                      Title: Vice President

                    By /s/ Michael S. Greenberg
                      ----------------------------------------------------------
                      Name:  Michael S. Greenberg
                      Title: Associate

                    FIRST UNION NATIONAL BANK, as a Bank and a
                        Managing Agent

                    By /s/ Mark L. Cook
                      ----------------------------------------------------------
                      Name:  Mark L. Cook
                      Title: Senior Vice President

                    ROYAL BANK OF CANADA, as a Bank and a Managing Agent

                    By
                      ----------------------------------------------------------
                      Name:
                      Title:

                                                                 Amendment No. 1

<Page>

                    SOCIETE GENERALE, as a Bank and Co-Agent

                    By /s/ Elaine Khalil
                      ----------------------------------------------------------
                      Name:  Elaine Khalil
                      Title: Director

                    SUNTRUST BANK, as a Bank and Co-Agent

                    By /s/ W. David Wisdom
                      ----------------------------------------------------------
                      Name:  W. David Wisdom
                      Title: Vice President

                    BANK ONE, NA, as a Bank

                    By /s/ Curtis R. Worthington
                      ----------------------------------------------------------
                      Name:  Curtis R. Worthington
                      Title: Corporate Banking Officer

                    BEAR STEARNS CORPORATE LENDING INC., as a   Bank

                    By /s/ Keith C. Barnish
                      ----------------------------------------------------------
                      Name:  Keith C. Barnish
                      Title: Executive Vice President

                    GENERAL ELECTRIC CAPITAL CORPORATION, as a Bank

                    By /s/ Kenneth M. Gacevich
                      ----------------------------------------------------------
                      Name:  Kenneth M. Gacevich
                      Title: Duly Authorized Signatory

                    MELLON BANK, N.A., as a Bank

                    By /s/ Nancy E. Gale
                      ----------------------------------------------------------
                      Name:  Nancy E. Gale
                      Title: Vice President

                                                                 Amendment No. 1

<Page>

                    MERRILL LYNCH CAPITAL CORPORATION, as a Bank

                    By /s/ Carol J.E. Feeley
                      ----------------------------------------------------------
                      Name:  Carol J.E. Feeley
                      Title: Vice President
                             Merrill Lynch Capital Corp.

                    PNC BANK, N.A., as a Bank

                    By /s/ Karen L. Kooman
                      ----------------------------------------------------------
                      Name:  Karen L. Kooman
                      Title: Vice President

                    UNION BANK OF CALIFORNIA, N.A., as a Bank

                    By /s/ Peter C Connoy
                      ----------------------------------------------------------
                      Name:  Peter C Connoy
                      Title: Vice President

                    J.P. MORGAN SECURITIES INC., as Arranger

                    By /s/ [ILLEGIBLE]
                      ----------------------------------------------------------
                      Name:  [ILLEGIBLE]
                      Title: MANAGING DIRECTOR

                                                                 Amendment No. 1<Page>

                                                                   Exhibit 10.35

                                 AMENDMENT NO. 2
                          dated as of November 19, 2001
                                       to
                  SEVENTH AMENDED AND RESTATED CREDIT AGREEMENT
                            dated as of June 26, 2001

                                       and

                                 AMENDMENT NO. 1
                          dated as of November 19, 2001
                                       to
                                PLEDGE AGREEMENT
                            dated as of June 26, 2001

     CSC HOLDINGS, INC. (formerly known as Cablevision Systems Corporation), a
Delaware corporation (the "COMPANY"), the Restricted Subsidiaries (as defined in
the Credit Agreement referred to below) that are parties to such Credit
Agreement, the banks that are parties to such Credit Agreement (the "BANKS") and
TORONTO DOMINION (TEXAS), INC., as Administrative Agent (the "ADMINISTRATIVE
AGENT"), agree as follows:

                                    ARTICLE I

                                CREDIT AGREEMENT

     Section 1.1. CREDIT AGREEMENT. Reference is made to the Seventh Amended &
Restated Credit Agreement, dated as of June 26, 2001 (as amended by Amendment
No. 1, dated as of July 20, 2001, to Seventh Amended and Restated Credit
Agreement, dated as of July 26, 2001, the "CREDIT AGREEMENT"), among the
Company, the Restricted Subsidiaries party thereto, the Banks, the
Administrative Agent, TD Securities (USA) Inc. and Banc of America Securities
LLC, as Co-Lead Arrangers and Co-Book Managers, Bank of America, N.A., as
Syndication Agent, The Bank of New York and The Bank of Nova Scotia, as
Co-Documentation Agents and Arrangers, The Chase Manhattan Bank, as
Co-Documentation Agent, Fleet National Bank, J.P. Morgan Securities Inc., Mizuho
Financial Group and Salomon Smith Barney Inc., as Arrangers, Bank of Montreal,
Barclays Bank plc, BNP Paribas, Credit Lyonnais New York Branch, Dresdner Bank
AG, New York and Grand Cayman Branches, First Union National Bank and Royal Bank
of Canada, as Managing Agents and Societe Generale and SunTrust Bank, as
Co-Agents. Terms used in this Amendment No. 2 to Seventh Amended and Restated
Credit Agreement and Amendment No. 1 to Pledge Agreement (this "AMENDMENT") that
are not otherwise defined herein shall have the meanings given to such terms in
the Credit Agreement. The Credit Agreement as amended by this Amendment (the
"AMENDED CREDIT AGREEMENT") is and shall continue to be in full force and effect
and is hereby in all respects ratified and confirmed.

     Section 1.2. AMENDMENT. Upon and after the Second Amendment Effective Date
(as defined in Section 4.5 hereof):

<Page>

     (a)  Clauses (a) and (b) of the definition of "Applicable Margin" in
          Section 1.01 of the Credit Agreement shall be amended and restated in
          their entirety as follows:

               (a) With respect to Base Rate Loans

               (i) 1.000% at all times during any Applicable Period if the Cash
     Flow Ratio as at the end of the immediately preceding Quarter was greater
     than 6.25 to 1;

               (ii) 0.750% at all times during any Applicable Period if the Cash
     Flow Ratio as at the end of the immediately preceding Quarter was less than
     or equal to 6.25 to 1 and greater than 6.00 to 1;

               (iii) 0.500% at all times during any Applicable Period if the
     Cash Flow Ratio as at the end of the immediately preceding Quarter was less
     than or equal to 6.00 to 1 and greater than 5.50 to 1;

               (iv) 0.375% at all times during any Applicable Period if the Cash
     Flow Ratio as at the end of the immediately preceding Quarter was less than
     or equal to 5.50 to 1 and greater than 5.00 to 1;

               (v) 0.250% at all times during any Applicable Period if the Cash
     Flow Ratio as at the end of the immediately preceding Quarter was less than
     or equal to 5.00 to 1 and greater than 4.50 to 1;

               (vi) 0.000% at all times during any Applicable Period if the Cash
     Flow Ratio as at the end of the immediately preceding Quarter was less than
     or equal to 4.50 to 1; and

               (b) With respect to Eurodollar Loans

               (i) 2.000% at all times during any Applicable Period if the Cash
          Flow Ratio as at the end of the immediately preceding Quarter was
          greater than 6.25 to 1;

               (ii) 1.750% at all times during any Applicable Period if the Cash
          Flow Ratio as at the end of the immediately preceding Quarter was less
          than or equal to 6.25 to 1 and greater than 6.00 to 1;

               (iii) 1.500% at all times during any Applicable Period if the
          Cash Flow Ratio as at the end of the immediately preceding Quarter was
          less than or equal to 6.00 to 1 and greater than 5.50 to 1;

               (iv) 1.375% at all times during any Applicable Period if the Cash
          Flow Ratio as at the end of the immediately preceding Quarter was less
          than or equal to 5.50 to 1 and greater than 5.00 to 1;

                                        2
<Page>

               (v) 1.250% at all times during any Applicable Period if the Cash
          Flow Ratio as at the end of the immediately preceding Quarter was less
          than or equal to 5.00 to 1 and greater than 4.50 to 1;

               (vi) 1.000% at all times during any Applicable Period if the Cash
          Flow Ratio as at the end of the immediately preceding Quarter was less
          than or equal to 4.50 to 1 and greater than 4.00 to 1;

               (vii) 0.875% at all times during any Applicable Period if the
          Cash Flow Ratio as at the end of the immediately preceding Quarter was
          less than or equal to 4.00 to 1.

     (b)  Section 9.22 of the Credit Agreement shall be amended and restated in
     its entirety as follows:

     CASH FLOW RATIO. The Company and the Guarantors will not permit the Cash
     Flow Ratio to exceed the following respective amounts at any time during
     the following respective periods:

<Table>
<Caption>
                             PERIOD                             RATIO
            <S>                                               <C>
            From and including the Effective Date to
                  and including September 30, 2001            6.25 to 1

            From and including October 1, 2001 to and
                  including March 31, 2004                    6.75 to 1

            From and including April 1, 2004 to and
                  including March 31, 2005                    6.25 to 1

            From and including April 1, 2005 to and
                  including December 31, 2005                 5.25 to 1

            On and after January 1, 2006                      4.50 to 1
</Table>

                                   ARTICLE II

                                PLEDGE AGREEMENT

     Section 2.1. PLEDGE AGREEMENT. Reference is made to the Pledge Agreement,
dated as of June 26, 2001, by and between the Company and the Administrative
Agent (the "PLEDGE AGREEMENT"). The Pledge Agreement as amended by this
Amendment (the "AMENDED PLEDGE AGREEMENT" and together with the Amended Credit
Agreement, the "AMENDED LOAN DOCUMENTS") is and shall continue to be in full
force and effect and is hereby in all respects ratified and confirmed.

     Section 2.2. AMENDMENT. Upon and after the Second Amendment Effective Date:

     (a)  Clause "Third" of Section 4.01 of the Pledge Agreement shall be
amended and restated in its entirety as follows:

                                        3
<Page>

     Third. To the payment, pro rata, of (i) the other Secured Obligations
     (other than Swap Obligations) in such order as the Majority Banks may elect
     and (ii) the Swap Obligations (with the Pledgor remaining liable, in each
     case, for any deficiency); and

     (b) The definition of "Secured Obligations" in Section 6.01(b) of the
Pledge Agreement shall be amended and restated in its entirety as follows:

     "SECURED OBLIGATIONS" means (i) all Liabilities of the Pledgor owing to, or
     in favor or for the benefit of, or purporting to be owing to, or in favor
     or for the benefit of, the Principals under the Loan Documents and (ii) all
     Swap Obligations, in each case (a)(1) whether now existing or hereafter
     arising or acquired and (2) whether or not arising or acquired pursuant to
     a commitment, (b) whether owing to, or in favor or for the benefit of, or
     purporting to be owing to, or in favor or for the benefit of, persons that
     are principals as of the agreement date or that become principals by reason
     of any succession or assignment at any time thereafter and (c) whether or
     not an allowable claim against the Pledgor or any guarantor under the
     bankruptcy code or otherwise enforceable against any such person, and
     including, in any event, interest and other liabilities accruing or arising
     after the filing by or against any such person of a petition under the
     bankruptcy code or that would have so accrued or arisen but for the filing
     of such a petition.

     (c) Section 6.01(b) of the Pledge Agreement shall be amended by inserting
the following definition in alphabetical order therein:

     "SWAP OBLIGATIONS" means all Liabilities of the Pledgor owing to, or in
     favor or for the benefit of, or purporting to be owing to, or in favor or
     for the benefit of, any Bank (or an Affiliate thereof) under any Interest
     Swap Agreement or any other similar agreement (including any option to
     enter into any of the foregoing) designed to protect the Pledgor against
     fluctuations in interest rates or similar risks.

                                   ARTICLE III

                         REPRESENTATIONS AND WARRANTIES

     Section 3.1. REPRESENTATIONS AND WARRANTIES. Each of the Company and the
Restricted Subsidiaries that are parties to the Credit Agreement represents and
warrants as follows:

          (a) POWER; BINDING AGREEMENTS. Each of the Company and such Restricted
Subsidiaries has full power, authority and legal right to make and perform this
Amendment and the Amended Loan Documents. This Amendment and the Amended Loan
Documents constitute the legal, valid and binding obligations of each of the
Company and such Restricted Subsidiaries, enforceable in accordance with their
terms (except for limitations on enforceability under bankruptcy,
reorganization, insolvency and other similar laws affecting creditors' rights
generally and limitations on the availability of the remedy of specific
performance imposed by the application of general equitable principles).

          (b) AUTHORITY; NO CONFLICT. The making and performance of this
Amendment and the Amended Loan Documents by each of the Company and such
Restricted Subsidiaries

                                        4
<Page>

have been duly authorized by all necessary action and do not and will not (i)
violate any provision of any laws, orders, rules or regulations presently in
effect (other than violations that, singly or in the aggregate, have not had and
are not likely to have a Materially Adverse Effect), or any provision of any of
the Company's or the Restricted Subsidiaries' respective partnership agreements,
charters or by-laws presently in effect; (ii) result in the breach of, or
constitute a default or require any consent under, any existing indenture or
other agreement or instrument to which the Company or any of the Restricted
Subsidiaries is a party or by which their respective properties may be bound or
affected (other than any breach, default or required consent that, singly or in
the aggregate, have not had and are not likely to have a Materially Adverse
Effect); or (iii) result in, or require, the creation or imposition of any Lien
upon or with respect to any of the properties or assets now owned or hereafter
acquired by the Company or any of the Restricted Subsidiaries.

          (c) APPROVAL OF REGULATORY AUTHORITIES. No approval or consent of, or
filing or registration with, any federal, state or local commission or other
regulatory authority is required in connection with the execution, delivery and
performance by the Company and such Restricted Subsidiaries of this Amendment
and the Amended Loan Documents.

          (d) CREDIT AGREEMENT REPRESENTATIONS AND WARRANTIES. Each
representation and warranty made by the Company in the Credit Agreement is true
and correct at and as of the date hereof, except to the extent that such
representation and warranty expressly relates to an earlier date.

     Section 3.2. SURVIVAL. Each of the foregoing representations and warranties
shall be made at and as of the Second Amendment Effective Date and shall
constitute a representation and warranty of the Company and the Restricted
Subsidiaries made under the Amended Credit Agreement and it shall be an Event of
Default if any such representation and warranty shall prove to have been
incorrect or misleading in any material respect when made. Each of the
representations and warranties made under the Amended Loan Documents (and
including those representations and warranties made herein) shall survive and
not be waived by the execution and delivery of this Amendment.

                                   ARTICLE IV

                                  MISCELLANEOUS

     Section 4.1. GOVERNING LAW. This Amendment shall be construed in accordance
with and governed by the laws of the State of New York.

     Section 4.2. COUNTERPARTS. This Amendment may be executed in any number of
counterparts, each of which shall be deemed to be an original, but all such
separate counterparts shall together constitute but one and the same instrument.

     Section 4.3. EXPENSES. The Company hereby agrees to pay or reimburse the
Administrative Agent for all reasonable fees and expenses, including attorneys'
fees, incurred in connection with the negotiation, preparation, execution and
delivery of this Amendment.

                                        5
<Page>

     Section 4.4. AMENDMENT FEE. The Company hereby agrees that it shall pay to
each Bank which executes and delivers to the Administrative Agent (or its
designee) a counterpart hereof on or prior to the Second Amendment Effective
Date, a non-refundable cash fee in an amount equal to 10.0 basis points (0.10%)
of the Commitment of such Bank, as in effect on the Second Amendment Effective
Date, which fee shall be paid by the Company for distribution to the Banks not
later than the Second Amendment Effective Date.

     Section 4.5. SECOND AMENDMENT EFFECTIVE DATE. This Amendment shall become
effective as of the date first written above (the "SECOND AMENDMENT EFFECTIVE
DATE") on the first date when (i) this Amendment shall have been duly executed
and delivered by the Company, each of the Restricted Subsidiaries that are
parties to the Credit Agreement, the Administrative Agent and the Majority Banks
and (ii) the fee payable pursuant to Section 4.4 hereof shall have been paid in
full.

              [THE REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]

                                        6
<Page>

     IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
duly executed as of the day and year first above written.

                         CSC HOLDINGS, INC.

                         By /s/ John Bier
                           --------------------------------------------
                           Name:  John Bier
                           Title: Authorized Signatory

                         CABLEVISION OF CONNECTICUT CORPORATION

                         CABLEVISION AREA 9 CORPORATION

                         CABLEVISION FAIRFIELD CORPORATION

                         COMMUNICATIONS DEVELOPMENT CORPORATION

                         CABLEVISION SYSTEMS DUTCHESS CORPORATION

                         CABLEVISION SYSTEMS EAST HAMPTON CORPORATION

                         CABLEVISION SYSTEMS GREAT NECK CORPORATION

                         CABLEVISION SYSTEMS HUNTINGTON CORPORATION

                         CABLEVISION SYSTEMS ISLIP CORPORATION

                         CABLEVISION SYSTEMS LONG ISLAND CORPORATION

                         CABLEVISION SYSTEMS SUFFOLK CORPORATION

                         CABLEVISION SYSTEMS WESTCHESTER CORPORATION

                 Credit Agreement Amendment No.2/Pledge Agreement Amendment No.1

<Page>

                         CABLEVISION OF CLEVELAND G.P., INC.

                         CABLEVISION OF CLEVELAND L.P., INC.

                         TELERAMA, INC.

                         CABLEVISION OF THE MIDWEST HOLDING CO., INC.

                         CSC ACQUISITION CORPORATION

                         CSC ACQUISITION - NY, INC.

                         CSC ACQUISITION - MA, INC.

                         A-R CABLE SERVICES - NY, INC.

                         CABLEVISION LIGHTPATH, INC.

                         CABLEVISION OF BROOKLINE, INC.

                         CABLEVISION SYSTEMS BROOKLINE CORPORATION

                         ARSENAL MSUB 2, INC.

                         PETRA CABLEVISION CORPORATION

                         SUFFOLK CABLE CORPORATION

                         SAMSON CABLEVISION CORP.

                         SUFFOLK CABLE OF SMITHTOWN, INC.

                         SUFFOLK CABLE OF SHELTER ISLAND, INC.

                         CABLEVISION SYSTEMS NEW YORK CITY CORPORATION

                         CABLEVISION OF WAPPINGERS FALLS, INC.

                 Credit Agreement Amendment No.2/Pledge Agreement Amendment No.1

<Page>

                         CABLEVISION OF BROOKHAVEN, INC.

                         CABLEVISION OF SOUTHERN WESTCHESTER, INC.

                         CABLEVISION OF OAKLAND, INC.

                         CABLEVISION OF PATERSON, INC.

                         CABLEVISION OF ROCKLAND/RAMAPO, INC.

                         CABLEVISION OF WARWICK, INC.

                         MONTAGUE CABLE COMPANY, INC.

                         CSC TKR, INC.

                         CSC TKR I, INC.

                         CABLEVISION MFR, INC.

                         CABLEVISION OF MONMOUTH, INC.

                         CABLEVISION OF HUDSON COUNTY, INC.

                         CABLEVISION OF NEW JERSEY, INC.

                         CSC GATEWAY CORPORATION

                         CABLEVISION OF LITCHFIELD, INC.

                         151 S. FULTON STREET CORPORATION

                         By /s/ John Bier
                           -------------------------------------
                           Name:  John Bier
                           Title: Authorized Signatory

                                of each of the above-named corporations

                 Credit Agreement Amendment No.2/Pledge Agreement Amendment No.1

<Page>

                         CSC GATEWAY CORPORATION
                         CABLEVISION OF NEW JERSEY, INC.,
                         each a General Partner of Cablevision of Newark

                         CABLEVISION OF NEW JERSEY, INC.
                         CSC GATWEWAY CORPORATION
                         each a General Partner of Cablevision of Newark

                         CABLEVISION SYSTEMS BROOKLINE
                         CORPORATION
                         Managing General Partner of Cablevision of Ossining,
                           L.P.

                         CABLEVISION AREA 9 CORPORATION,
                         General Partner of Cablevision of Connecticut, L.P.

                         CABLEVISION OF CLEVELAND G.P., INC.,
                         General Partner of Cablevision of Cleveland, L.P.

                         CABLEVISION FAIRFIELD CORPORATION,
                         General Partner of Cablevision Systems of Southern
                         Connecticut, L.P.

                         CSC TKR, INC.,
                         General Partner of KRC/CCC Investment Partnership

                         By /s/ John Bier
                           ---------------------------------------
                           Name:  John Bier
                           Title: Authorized Signatory
                         of each of the above corporate general partners

                 Credit Agreement Amendment No.2/Pledge Agreement Amendment No.1

<Page>

                         TORONTO DOMINION (TEXAS), INC., as
                           Administrative Agent and a Bank

                         By /s/ Navanesbitt
                           ---------------------------------------
                           Name:  Navanesbitt
                           Title: Vice President

                         TD SECURITIES (USA) INC., as
                           Co-Lead Arranger and Co-Book Manager

                         By /s/ [ILLEGIBLE]
                           ---------------------------------------
                           Name:  [ILLEGIBLE]
                           Title: Managing Director

                         BANC OF AMERICA SECURITIES LLC,
                           as Co-Lead Arranger and Co-Book Manager

                         By /s/ Barbara Jorgensen
                           ---------------------------------------
                           Name:  Barbara Jorgensen
                           Title: Managing Director

                         BANK OF AMERICA, N.A., as Syndication Agent and a
                           Bank

                         By /s/ Toddshipley
                           ---------------------------------------
                           Name:  Toddshipley
                           Title: Managing Director

                         THE BANK OF NEW YORK,
                           as a Bank, Arranger and Co-Documentation Agent

                         By /s/ James W. Whitaker
                           ---------------------------------------
                           Name:  James W. Whitaker
                           Title: Senior Vice President

                 Credit Agreement Amendment No.2/Pledge Agreement Amendment No.1

<Page>

                         THE BANK OF NOVA SCOTIA, as a Bank,
                           Arranger and Co-Documentation Agent

                         By /s/ P.A. Weissenberger
                           ---------------------------------------
                           Name:  P.A. Weissenberger
                           Title: Authorized Signatory

                         THE CHASE MANHATTAN BANK, as a Bank and
                         Co-Documentation Agent

                         By /s/ Joan M. Fitzgibbon
                           ---------------------------------------
                           Name:  Joan M. Fitzgibbon
                           Title: Managing Director

                         FLEET NATIONAL BANK, as a Bank and Arranger

                         By /s/ Arthur S. Torrey
                           ---------------------------------------
                           Name:  Arthur S. Torrey
                           Title: Vice President

                         SALOMON SMITH BARNEY INC., as Arranger

                         By /s/ [ILLEGIBLE]
                           ---------------------------------------
                           Name:
                           Title: Attorney-In-Fact

                         CITIBANK, N.A., as a Bank

                         By /s/ Mauree Maroney
                           ---------------------------------------
                           Name:  Maureen Maroney
                           Title: Director

                 Credit Agreement Amendment No.2/Pledge Agreement Amendment No.1

<Page>

                         THE DAI-ICHI KANGYO BANK, LTD
                         (d/b/a MIZUHO FINANCIAL GROUP)
                           as a Bank and Arranger

                         By /s/ Yudesh Sohan
                           ---------------------------------------
                           Name:  Yudesh Sohan
                           Title: Credit Officer

                         THE FUJI BANK, LTD
                         (d/b/a MIZUHO FINANCIAL GROUP)
                           as a Bank and Arranger

                         By /s/ Raymond Ventura
                           ---------------------------------------
                           Name:  Raymond Ventura
                           Title: Senior Vice President

                         BANK OF MONTREAL, as a Bank and a Managing Agent

                         By /s/ Sarah Kim
                           ---------------------------------------
                           Name:  Sarah Kim
                           Title: Director

                         BARCLAYS BANK PLC, as a Bank and a Managing Agent

                         By /s/ Timothy C. Harrington
                           ---------------------------------------
                           Name:  Timothy C. Harrington
                           Title: Director

                         BNP PARIBAS, as a Bank and a Managing Agent

                         By /s/ Serge Derrayaud
                           ---------------------------------------
                           Name:  Serge Derrayaud
                           Title: Head of Asset Management
                                    Media & Telecom Finance

                         By /s/ Gregg Bonardi
                           ---------------------------------------
                           Name:  Gregg Bonardi
                           Title: Director
                                  Media & Telecom Finance

                 Credit Agreement Amendment No.2/Pledge Agreement Amendment No.1

<Page>

                         CREDIT LYONNAIS NEW YORK BRANCH, as a Bank
                           and a Managing Agent

                         By /s/ Jeremy Horn
                           ---------------------------------------
                           Name:  Joremy Horn
                           Title: Authorized Signature

                         DRESDNER BANK AG, NEW YORK AND GRAND
                         CAYMAN BRANCHES, as a Bank and a Managing Agent

                         By /s/ William E. Lambett
                           ---------------------------------------
                           Name:  William E. Lambett
                           Title: Vice President

                         By /s/ Michael S. Greenberg
                           ---------------------------------------
                           Name:  Michael S. Greenberg
                           Title: Associate

                         FIRST UNION NATIONAL BANK, as a Bank and a
                           Managing Agent

                         By /s/ Mark L. Cook
                           ---------------------------------------
                           Name:  Mark L. Cook
                           Title: Senior Vice President

                         ROYAL BANK OF CANADA, as a Bank and a Managing Agent

                         By /s/   Barbara Meijer
                           ---------------------------------------
                           Name:  Barbara Meijer
                           Title: Managing Director

                 Credit Agreement Amendment No.2/Pledge Agreement Amendment No.1

<Page>

                         SOCIETE GENERALE, as a Bank and Co-Agent

                         By /s/ Elaine Khalil
                           ---------------------------------------
                           Name:  /s/ Elaine Khalil
                           Title: Director

                         SUNTRUST BANK, as a Bank and Co-Agent

                         By /s/ David G Jones
                           ---------------------------------------
                           Name:  David G Jones
                           Title: Managing Director

                         BANK ONE, NA, as a Bank

                         By /s/ Curtis R. Worthington
                           ---------------------------------------
                           Name:  Curtis R. Worthington
                           Title: Assistant Vice President

                         BEAR STEARNS CORPORATE LENDING INC., as a   Bank

                         By /s/ Victor F Bulzacchelli
                           ---------------------------------------
                           Name:  Victor F Bulzacchelli
                           Title: Managing Director

                         GENERAL ELECTRIC CAPITAL CORPORATION, as a Bank

                         By /s/ Kenneth M. Gacevich
                           ---------------------------------------
                           Name:  Kenneth M. Gacevich
                           Title: Duly Authorized Signatory

                         MELLON BANK, N.A., as a Bank

                         By /s/ Nancy E. Gale
                           ---------------------------------------
                           Name:  Nancy E. Gale
                           Title: Vice President

                 Credit Agreement Amendment No.2/Pledge Agreement Amendment No.1

<Page>

                         MERRILL LYNCH CAPITAL CORPORATION, as a Bank

                         By /s/ [ILLEGIBLE]
                           ---------------------------------------
                           Name:  [ILLEGIBLE]
                           Title: Vice President

                         PNC BANK, NATIONAL ASSOCIATION, as a Bank

                         By Jeffrey E. Hauser
                           ---------------------------------------
                           Name:  Jeffrey E. Hauser
                           Title: Vice President

                         UNION BANK OF CALIFORNIA, N.A., as a Bank

                         By
                           ---------------------------------------
                           Name:
                           Title:

                         J.P. MORGAN SECURITIES INC., as Arranger

                         By
                           ---------------------------------------
                           Name:
                           Title:

                         SUMITOMO MITSUI BANKING CORPORATION, as a Bank

                         By /s/ Leo E. Pagarigan
                           ---------------------------------------
                           Name:  Leo E. Pagarigan
                           Title: Vice President

                 Credit Agreement Amendment No.2/Pledge Agreement Amendment NO.1

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