Document:

<PAGE>
                                                                    Exhibit 10.9

                                                                  EXECUTION COPY

                  THIS FIRST SUPPLEMENTAL INDENTURE, dated as of December 31,
2003 (this "Supplemental Indenture"), is by and among Rogers Cable Inc., a
corporation organized under the laws of the Province of Ontario (hereinafter
called "Rogers Cable"), Rogers Cable Communications Inc., a corporation
organized under the laws of the Province of Ontario and a wholly-owned
subsidiary of Rogers Cable (hereinafter called "RCCI"), and JPMorgan Chase Bank,
a New York banking corporation, as trustee (hereinafter called the "Trustee").

                               W I T N E S S E T H

                  WHEREAS, Rogers Cable and the Trustee are parties to an
indenture dated as of April 30, 2002 (the "Indenture"), pursuant to which Rogers
Cable's outstanding 7.875% Senior (Secured) Second Priority Notes due May 1,
2012 (the "Notes") are issued, which Notes constitute "Securities" as that term
is defined in the Indenture;

                  WHEREAS, in connection with a corporate restructuring, Rogers
Cable intends to transfer certain of its properties, assets and liabilities
constituting its assets substantially as an entirety to RCCI (the "Transfer");

                  WHEREAS, pursuant to Section 801(a) of the Indenture, in
connection with the Transfer, RCCI is required to execute and deliver to the
Trustee a supplemental indenture assuming all of the obligations of the Company
under the Securities, the Indenture and, prior to the Release Date, the
Collateral Documents;

                  WHEREAS, Section 802 of the Indenture provides that upon the
transfer of the properties and assets of the Company substantially as an
entirety in accordance with Section 801 of the Indenture, (i) the successor
Person shall succeed to, and be substituted for, and may exercise every right
and power of, the Company under the Indenture with the same effect as if such
successor Person had been named as the Company in the Indenture and (ii) except
in the case of a lease, the Company shall be discharged from all obligations and
covenants under the Indenture and the Securities;

                  WHEREAS, Rogers Cable, RCCI and the Trustee desire that,
following the Transfer, (i) Rogers Cable shall not be discharged from its
obligations and covenants under the Indenture and the Securities, but shall
continue as the Company for all purposes of the Indenture and the Securities;
(ii) RCCI shall assume, as a co-obligor on a joint and several basis with Rogers
Cable, all of the Company's obligations under the Securities, the Indenture and,
prior to the Release Date, the Collateral Documents; and (iii) to the extent
provided herein each of Rogers Cable and RCCI shall be the Company for purposes
of the Indenture as if each of them had been named as the Company therein;

                  WHEREAS, Section 901 of the Indenture provides that without
the consent of any Holder of the Securities, the Company, when authorized by a
Board Resolution, and the Trustee, at any time and from time to time, may enter
into one or more indentures supplemental to the Indenture, to, among other
things, evidence the assumption by any successor Person of the covenants of the
Company in the Indenture, the Securities and the Collateral Documents, as the
case may be, or, to make any other change that does not adversely affect the
rights of any Holder; and

                                        1
<PAGE>

                  WHEREAS, Rogers Cable and RCCI have complied with all
conditions precedent provided for in the Indenture relating to this Supplemental
Indenture.

                  NOW, THEREFORE, for and in consideration of the foregoing
premises, the Company, RCCI and the Trustee hereby agree for the equal and
ratable benefit of the Holders of the Securities as follows:

                  1. Capitalized Terms. Capitalized terms used herein without
definition shall have the meanings assigned to them in the Indenture.

                  2. Assumption by RCCI. RCCI hereby assumes, as a co-obligor on
a joint and several basis with Rogers Cable, all obligations and covenants of
the Company under the Indenture, the Securities and, prior to the Release Date,
the Collateral Documents, including without limitation obligations for the due
and punctual payment of the principal of, premium, if any, and interest on all
Securities issued or to be issued pursuant to the Indenture and the performance
or observance of each other obligation and covenant set forth in the Indenture
to be performed or observed on the part of the Company.

                  3. Rogers Cable not Discharged. Notwithstanding Section 802 of
the Indenture, following the Transfer, Rogers Cable shall not be discharged from
its obligations and covenants under the Indenture and the Securities.

                  4. References to the "Company" in the Indenture. Following the
Transfer, all references to the "Company" in the Indenture shall be deemed to be
references to each of Rogers Cable and RCCI, as co-obligors on a joint and
several basis; provided, that (i) with respect to any matter to be determined on
a Consolidated basis for the Company and its Restricted Subsidiaries, such
matter shall be determined for Rogers Cable and its Restricted Subsidiaries,
treating RCCI for such purposes as a Restricted Subsidiary; (ii) where the
context requires that a reference to the "Company" refer to a single entity
only, such reference shall be deemed to be to Rogers Cable only; and (iii) all
references to the board of directors or any officer of the "Company" shall be
deemed to be references to the board of directors or such officer of Rogers
Cable.

                  5.       Notices. (a) Section 106(b) of the Indenture is
hereby amended and restated in its entirety as follows:

                           (b) Rogers Cable Inc. or Rogers Cable Communications
                  Inc. by the Trustee or any Holder shall be sufficient for
                  every purpose hereunder (unless otherwise herein expressly
                  provided) if made, given, furnished or delivered in writing to
                  Rogers Cable Inc. or Rogers Cable Communications Inc., as the
                  case may be, to 333 Bloor Street East, 10th Floor, Toronto,
                  Ontario, Canada, M4W 1G9, Attention: Vice-President,
                  Treasurer, fax: 416-935-3598, with a copy to the
                  Vice-President, General Counsel and Secretary, fax:
                  416-935-3548, or, in either case, at any other address
                  previously furnished in writing to the Trustee by Rogers Cable
                  Inc. or Rogers Cable Communications Inc.

                                        2
<PAGE>

         (b) At the date of execution of this Supplemental Indenture, the
Corporate Trust Office is located at 4 New York Plaza, 15th Floor, New York, New
York 10004, Attention: Institutional Trust Services.

                  6. Trustee's Acceptance. The Trustee hereby accepts this
Supplemental Indenture and agrees to perform the same under the terms and
conditions set forth in the Indenture.

                  7. Responsibility of Trustee. The recitals contained herein
shall be taken as the statements of Rogers Cable and RCCI, and the Trustee
assumes no responsibility for the correctness of such recitals. The Trustee
makes no representation as to the validity or sufficiency of this Supplemental
Indenture.

                  8. Effect of Supplemental Indenture. Upon the execution and
delivery of this Supplemental Indenture by Rogers Cable, RCCI and the Trustee,
the Indenture shall be supplemented and amended in accordance herewith, and this
Supplemental Indenture shall form a part of the Indenture for all purposes, and
every Holder of a Security heretofore or hereafter authenticated and delivered
under the Indenture shall be bound thereby.

                  9. Indenture Remains in Full Force and Effect. Except as
supplemented or amended hereby, all other provisions in the Indenture and the
Securities, to the extent not inconsistent with the terms and provisions of this
Supplemental Indenture, shall remain in full force and effect.

                  10. Incorporation of Indenture. All the provisions of this
Supplemental Indenture shall be deemed to be incorporated in, and made a part
of, the Indenture; and the Indenture, as supplemented and amended by this
Supplemental Indenture, shall be read, taken and construed as one and the same
instrument.

                  11. Counterparts. This Supplemental Indenture may be executed
in any number of counterparts, each of which so executed shall be deemed to be
an original, but all such counterparts shall together constitute but one and the
same instrument.

                  12. Effect of Headings. The headings of this Supplemental
Indenture are inserted for convenience of reference and shall not be deemed to
be a part thereof.

                  13. Conflict with Trust Indenture Act. If any provision of
this Supplemental Indenture limits, qualifies or conflicts with any provision of
the Trust Indenture Act that is required under the Trust Indenture Act to be
part of and govern any provision of this Supplemental Indenture, the provision
of the Trust Indenture Act shall control. If any provision of this Supplemental
Indenture modifies or excludes any provision of the Trust Indenture Act that may
be so modified or excluded, the provision of the Trust Indenture Act shall be
deemed to apply to the Indenture as so modified or to be excluded by this
Supplemental Indenture, as the case may be.

                  14. Successors. All covenants and agreements in this
Supplemental Indenture by RCCI and Rogers Cable shall be binding upon and accrue
to the benefit of their respective

                                        3
<PAGE>

successors. All covenants and agreements in this Supplemental Indenture by the
Trustee shall be binding upon and accrue to the benefit of its successors.

                  15. Benefits of Supplemental Indenture. Nothing in this
Supplemental Indenture, the Indenture or the Securities, express or implied,
shall give to any Person, other than the parties hereto and thereto and their
successors hereunder and thereunder and the Holders, any benefit of any legal or
equitable right, remedy or claim under this Supplemental Indenture, the
Indenture or the Securities.

                  16. GOVERNING LAW. THE LAWS OF THE STATE OF NEW YORK, WITHOUT
REGARD TO PRINCIPLES OF CONFLICTS OF LAW, SHALL GOVERN THIS SUPPLEMENTAL
INDENTURE.

                                        4
<PAGE>

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

                                    ROGERS CABLE INC.,

                                    By: /s/ M. L. Daly
                                        --------------------------------------
                                        Name:
                                        Title:

                                    By: /s/ Alan Horn
                                        --------------------------------------
                                        Name:
                                        Title:

                                    ROGERS CABLE COMMUNICATIONS INC.,

                                    By: /s/ M. L. Daly
                                        --------------------------------------
                                        Name:
                                        Title:

                                    By: /s/ Alan Horn
                                        --------------------------------------
                                        Name:
                                        Title:

                                    JPMORGAN CHASE BANK,
                                    as Trustee

                                    By: /s/ Rosa Ciaccia
                                        --------------------------------------
                                        Name:  Rosa Ciaccia
                                        Title: Trust Officer

                                        5<PAGE>
                                                                   Exhibit 10.11

                                                                  EXECUTION COPY

                  THIS FIRST SUPPLEMENTAL INDENTURE, dated as of December 31,
2003 (this "Supplemental Indenture"), is by and among Rogers Cable Inc., a
corporation organized under the laws of the Province of Ontario (hereinafter
called "Rogers Cable"), Rogers Cable Communications Inc., a corporation
organized under the laws of the Province of Ontario and a wholly-owned
subsidiary of Rogers Cable (hereinafter called "RCCI"), and JPMorgan Chase Bank,
a New York banking corporation, as trustee (hereinafter called the "Trustee").

                               W I T N E S S E T H

                  WHEREAS, Rogers Cable and the Trustee are parties to an
indenture dated as of April 30, 2002 (the "Indenture"), pursuant to which Rogers
Cable's outstanding 8.750% Senior (Secured) Second Priority Debentures due May
1, 2032 (the "Notes") are issued, which Notes constitute "Securities" as that
term is defined in the Indenture;

                  WHEREAS, in connection with a corporate restructuring, Rogers
Cable intends to transfer certain of its properties, assets and liabilities
constituting its assets substantially as an entirety to RCCI (the "Transfer");

                  WHEREAS, pursuant to Section 801(a) of the Indenture, in
connection with the Transfer, RCCI is required to execute and deliver to the
Trustee a supplemental indenture assuming all of the obligations of the Company
under the Securities, the Indenture and prior to the Release Date, the
Collateral Documents;

                  WHEREAS, Section 802 of the Indenture provides that upon the
transfer of the properties and assets of the Company substantially as an
entirety in accordance with Section 801 of the Indenture, (i) the successor
Person shall succeed to, and be substituted for, and may exercise every right
and power of, the Company under the Indenture with the same effect as if such
successor Person had been named as the Company in the Indenture and (ii) except
in the case of a lease, the Company shall be discharged from all obligations and
covenants under the Indenture and the Securities;

                  WHEREAS, Rogers Cable, RCCI and the Trustee desire that,
following the Transfer, (i) Rogers Cable shall not be discharged from its
obligations and covenants under the Indenture and the Securities, but shall
continue as the Company for all purposes of the Indenture and the Securities;
(ii) RCCI shall assume, as a co-obligor on a joint and several basis with Rogers
Cable, all of the Company's obligations under the Securities, the Indenture and,
prior to the Release Date, the Collateral Documents; and (iii) to the extent
provided herein each of Rogers Cable and RCCI shall be the Company for purposes
of the Indenture as if each of them had been named as the Company therein;

                  WHEREAS, Section 901 of the Indenture provides that without
the consent of any Holders, the Company, when authorized by a Board Resolution,
and the Trustee, at any time and from time to time, may enter into one or more
indentures supplemental to the Indenture, to, among other things, evidence the
assumption by any successor Person of the covenants of the Company in the
Indenture, the Securities and the Collateral Documents, as the case may be, or,
to make any other change that does not adversely affect the rights of any
Holder; and

                                        1
<PAGE>

                  WHEREAS, Rogers Cable and RCCI have complied with all
conditions precedent provided for in the Indenture relating to this Supplemental
Indenture.

                  NOW, THEREFORE, for and in consideration of the foregoing
premises, Rogers Cable, RCCI and the Trustee hereby agree for the equal and
ratable benefit of the Holders as follows:

                  1.       Capitalized Terms. Capitalized terms used herein
without definition shall have the meanings assigned to them in the Indenture.

                  2.       Assumption by RCCI. RCCI hereby assumes, as a
co-obligor on a joint and several basis with Rogers Cable, all obligations and
covenants of the Company under the Indenture, the Securities and, prior to the
Release Date, the Collateral Documents, including without limitation obligations
for the due and punctual payment of the principal of, premium, if any, and
interest on all Securities issued or to be issued pursuant to the Indenture and
the performance or observance of each other obligation and covenant set forth in
the Indenture to be performed or observed on the part of the Company.

                  3.       Rogers Cable not Discharged. Notwithstanding Section
802 of the Indenture, following the Transfer, Rogers Cable shall not be
discharged from its obligations and covenants under the Indenture and the
Securities.

                  4.       References to the "Company" in the Indenture.
Following the Transfer, all references to the "Company" in the Indenture shall
be deemed to be references to each of Rogers Cable and RCCI, as co-obligors on a
joint and several basis; provided, that (i) with respect to any matter to be
determined on a Consolidated basis for the Company and its Restricted
Subsidiaries, such matter shall be determined for Rogers Cable and its
Restricted Subsidiaries, treating RCCI for such purposes as a Restricted
Subsidiary; (ii) where the context requires that a reference to the "Company"
refer to a single entity only, such reference shall be deemed to be to Rogers
Cable only; and (iii) all references to the board of directors or any officer of
the "Company" shall be deemed to be references to the board of directors or such
officer of Rogers Cable.

                  5.       Notices. (a) Section 106(b) of the Indenture is
hereby amended and restated in its entirety as follows:

                           (b) Rogers Cable Inc. or Rogers Cable Communications
                  Inc. by the Trustee or any Holder shall be sufficient for
                  every purpose hereunder (unless otherwise herein expressly
                  provided) if made, given, furnished or delivered in writing to
                  Rogers Cable Inc. or Rogers Cable Communications Inc., as the
                  case may be, to 333 Bloor Street East, 10th Floor, Toronto,
                  Ontario, Canada, M4W 1G9, Attention: Vice-President,
                  Treasurer, fax: 416-935-3598, with a copy to the
                  Vice-President, General Counsel and Secretary, fax:
                  416-935-3548, or, in either case, at any other address
                  previously furnished in writing to the Trustee by Rogers Cable
                  Inc. or Rogers Cable Communications Inc.

                                        2
<PAGE>

         (b) At the date of execution of this Supplemental Indenture, the
Corporate Trust Office is located at 4 New York Plaza, 15th Floor, New York, New
York 10004, Attention: Institutional Trust Services.

                  6.       Trustee's Acceptance. The Trustee hereby accepts this
Supplemental Indenture and agrees to perform the same under the terms and
conditions set forth in the Indenture.

                  7.       Responsibility of Trustee. The recitals contained
herein shall be taken as the statements of Rogers Cable and RCCI, and the
Trustee assumes no responsibility for the correctness of such recitals. The
Trustee makes no representation as to the validity or sufficiency of this
Supplemental Indenture.

                  8.       Effect of Supplemental Indenture. Upon the execution
and delivery of this Supplemental Indenture by Rogers Cable, RCCI and the
Trustee, the Indenture shall be supplemented and amended in accordance herewith,
and this Supplemental Indenture shall form a part of the Indenture for all
purposes, and every Holder of a Security heretofore or hereafter authenticated
and delivered under the Indenture shall be bound thereby.

                  9.       Indenture Remains in Full Force and Effect. Except as
supplemented or amended hereby, all other provisions in the Indenture and the
Securities, to the extent not inconsistent with the terms and provisions of this
Supplemental Indenture, shall remain in full force and effect.

                  10.      Incorporation of Indenture. All the provisions of
this Supplemental Indenture shall be deemed to be incorporated in, and made a
part of, the Indenture; and the Indenture, as supplemented and amended by this
Supplemental Indenture, shall be read, taken and construed as one and the same
instrument.

                  11.      Counterparts. This Supplemental Indenture may be
executed in any number of counterparts, each of which so executed shall be
deemed to be an original, but all such counterparts shall together constitute
but one and the same instrument.

                  12.      Effect of Headings. The headings of this Supplemental
Indenture are inserted for convenience of reference and shall not be deemed to
be a part thereof.

                  13.      Conflict with Trust Indenture Act. If any provision
of this Supplemental Indenture limits, qualifies or conflicts with any provision
of the Trust Indenture Act that is required under the Trust Indenture Act to be
part of and govern any provision of this Supplemental Indenture, the provision
of the Trust Indenture Act shall control. If any provision of this Supplemental
Indenture modifies or excludes any provision of the Trust Indenture Act that may
be so modified or excluded, the provision of the Trust Indenture Act shall be
deemed to apply to the Indenture as so modified or to be excluded by this
Supplemental Indenture, as the case may be.

                  14.      Successors. All covenants and agreements in this
Supplemental Indenture by RCCI and Rogers Cable shall be binding upon and accrue
to the benefit of their respective

                                        3
<PAGE>

successors. All covenants and agreements in this Supplemental Indenture by the
Trustee shall be binding upon and accrue to the benefit of its successors.

                  15.      Benefits of Supplemental Indenture. Nothing in this
Supplemental Indenture, the Indenture or the Securities, express or implied,
shall give to any Person, other than the parties hereto and thereto and their
successors hereunder and thereunder and the Holders, any benefit of any legal or
equitable right, remedy or claim under this Supplemental Indenture, the
Indenture or the Securities.

                  16.      GOVERNING LAW. THE LAWS OF THE STATE OF NEW YORK,
WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAW, SHALL GOVERN THIS SUPPLEMENTAL
INDENTURE.

                                        4
<PAGE>

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

                                    ROGERS CABLE INC.,

                                    By:    /s/ M. L. Daly
                                           _____________________________________
                                           Name:
                                           Title:

                                    By:    /s/ Alan Horn
                                           _____________________________________
                                           Name:
                                           Title:

                                    ROGERS CABLE COMMUNICATIONS INC.,

                                    By:    /s/ M. L. Daly
                                           _____________________________________
                                           Name:
                                           Title:

                                    By:    /s/ Alan Horn
                                           _____________________________________
                                           Name:
                                           Title:

                                    JPMORGAN CHASE BANK,
                                    as Trustee

                                    By:    /s/ Rosa Ciaccia
                                           _____________________________________
                                           Name: Rosa Ciaccia
                                           Title: Trust Officer

                                        5

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