EXHIBIT 10.1

                              [VIACOM LETTERHEAD]



As of January 31, 2005


Richard J. Bressler
c/o Viacom Inc.
1515 Broadway
New York, New York

Dear Richard:

This letter expresses our understanding concerning your departure from your
position with Viacom Inc. ("Viacom" or the "Company"). Reference is made to your
employment agreement with Viacom, dated March 22, 2001 (your "Employment
Agreement"). Defined terms used without definitions in this letter agreement
will have the meanings provided in your Employment Agreement.

1.       Resignation from Executive Position. You will resign from your position
         as Senior Executive Vice President, Chief Financial Officer of Viacom
         for Good Reason on the date on which your successor is retained or such
         earlier date as shall be requested by the Company but not later than
         June 30, 2005 (the earlier of such dates being your "Resignation
         Date").

2.       Contractual Payments, Benefits and Perquisites. After your Resignation
         Date, you will receive the contractual payments, benefits and
         perquisites due upon a termination of employment for Good Reason under
         your Employment Agreement, as amended by the provisions of this letter
         agreement, as set forth below.

         o    Salary for the period from your Resignation Date through December
              31, 2005 will be paid in accordance with Viacom's payroll
              practices. Salary for the period from January 1, 2006 through the
              one year anniversary of your Resignation Date will be paid to you
              in a lump sum on or before December 31, 2005. Salary for the
              period from the one year anniversary of your Resignation Date
              through July 31, 2006 will be paid to you in a lump sum on or
              before December 31, 2005 but will be remitted to your attorneys,
              Schulte Roth & Zabel LLP, to be held in escrow in accordance with
              the attached escrow agreement (the "Escrow Agreement").

         o    Payment of Deferred Compensation for the period from January 1,
              2005 through your Resignation Date and for prior years (together
              with the return thereon as provided in paragraph 3(c) in your
              Employment Agreement) will be paid, as provided in your Employment
              Agreement, by January 31, 2006. Deferred Compensation for the
              period from your Resignation Date through December 31, 2005 will
              be deferred in accordance with paragraph 3(c) of your Employment
              Agreement and paid (together with the return



Richard J. Bressler
As of January 31, 2005
Page 2

              thereon as provided in paragraph 3(c) in your Employment
              Agreement) on or before December 31, 2005. Payment of Deferred
              Compensation for the period from January 1, 2006 through the one
              year anniversary of your Resignation Date will be paid to you in a
              lump sum on or before December 31, 2005. Deferred Compensation for
              the period from the one year anniversary of your Resignation Date
              through July 31, 2006 will be paid to you in a lump sum on or
              before December 31, 2005 but will be remitted to your attorneys,
              Schulte Roth & Zabel LLP, to be held in escrow in accordance with
              the Escrow Agreement.

         o    Car allowance for the period from your Resignation Date through
              December 31, 2005 will be paid in accordance with Viacom's payroll
              practices. Car allowance for the period from January 1, 2006
              through March 21, 2006 will be paid to you in a lump sum on or
              before December 31, 2005. You will receive car insurance for the
              period from your Resignation Date through December 31, 2005.

         o    Bonus compensation for the period from January 1, 2005 through the
              later of April 30, 2005 or your Resignation Date will be pro-rated
              and payable at the annual rate of $5.5 million. Bonus compensation
              for the period from the later of April 30, 2005 or your
              Resignation Date through March 21, 2006 will be pro-rated and
              payable at your annual Target Bonus rate of $2.5 million. Bonus
              compensation for the entire period from January 1, 2005 through
              March 21, 2006 will be paid to you in a lump sum on or before
              December 31, 2005.

         o    You will receive continued coverage under Viacom's group term life
              insurance policy in the amount of $5 million (convertible to an
              individual policy at your own expense thereafter) through December
              31, 2005.

         o    You will receive coverage under Viacom's medical and dental
              insurance under COBRA during the period from your Resignation
              Date, as provided in paragraph 8(d)(vi) in your Employment
              Agreement, through December 31, 2005 (with a right to continue at
              your own expense thereafter in accordance with COBRA).

         o    You are entitled to have provided to you an appropriate office and
              secretarial assistance during the period beginning on your
              Resignation Date and ending on December 31, 2005 or, if earlier,
              the date on which you obtain other employment. The secretarial
              assistance will be provided by your current assistant, Maria
              Ayala, provided she has not terminated her employment with the
              Company.

          You will not be required to mitigate compensation paid pursuant to
          this paragraph 2 except that Salary and Deferred Compensation payable
          for the period from the one year anniversary of your Resignation Date
          through July 31, 2006 will be subject to mitigation as provided in
          paragraph 8(e) in your Employment Agreement.





Richard J. Bressler
As of January 31, 2005
Page 3

3.        Stock Options. All unvested LTMIP stock options will vest and become
          exercisable in accordance with their terms on your Resignation Date,
          and you will have one year after the end of your employment term
          (specifically, until March 21, 2007) to exercise outstanding stock
          options (but not, in any case, beyond the options' expiration date).

4.        Restrictive Covenants. Your non-competition obligations under
          paragraph 6(a) in your Employment Agreement will terminate on your
          Resignation Date. Your obligations under paragraphs 6(b) through 6(h)
          in your Employment Agreement, and Viacom's obligations under paragraph
          6(h), will remain in effect for the periods of time provided in such
          paragraphs after your termination of employment. Viacom may enforce
          those obligations through injunctive relief as provided in paragraph
          6(i) in your Employment Agreement. Viacom hereby waives the
          application of paragraph 6(c) in your Employment Agreement (relating
          to non-solicitation of employees) to your current assistant, Maria
          Ayala.

5.        2004 Bonus Compensation. You will receive bonus compensation for 2004
          in the amount of $5.5 million, payable by February 10, 2005 (or such
          later date which is eight days after you execute this letter agreement
          and the general release attached hereto).

6.        Disability.  In the event of your  Disability  prior to your
          Resignation Date, you will be entitled to payment of all amounts due
          under this letter agreement through the date of Disability.
          Thereafter, you will be entitled to receive compensation and benefits
          as provided in paragraph 7 in your Employment Agreement except as set
          forth below with respect to your LTMIP stock options. In the event
          that you recover and are no longer "disabled" within the meaning of
          Viacom's STD and LTD programs before December 31, 2005, your
          employment will be terminated and you will thereafter receive the
          compensation, benefits and perquisites provided in this letter
          agreement for the balance of the period for which such compensation,
          benefits and perquisites are provided. In the event that you receive
          benefits under the LTD program, all unvested LTMIP stock options will
          immediately vest and, together with all outstanding LTMIP stock
          options that had already vested, will be exercisable until the third
          anniversary of the date on which LTD benefits commence.

7.        Death. In the event of your death prior to December 31, 2005, your
          beneficiary or estate will be entitled to the following:

         o    payment of Salary, Deferred Compensation, car allowance and bonus
              compensation due or payable under this letter agreement with
              respect to the period through the date of death;
         o    the proceeds available under the Company provided life insurance
              in accordance with its terms; and
         o    continued coverage under COBRA at their expense under Viacom's
              medical and dental insurance plans for the balance of the period
              required by law.

         In the event of your death before your Resignation Date, all unvested
         LTMIP stock options will immediately vest and, together with all
         outstanding LTMIP stock options that had already vested, will be
         exercisable until the second anniversary of the date of death. Except
         as





Richard J. Bressler
As of January 31, 2005
Page 4


         provided in this paragraph 7, Viacom will not have any further
         obligation to provide compensation, benefits or perquisites after the
         date of death; the foregoing is without prejudice to the right of your
         beneficiary or estate to have all rights expressly provided to them
         under all other Viacom benefit plans and programs.

8.       Amendment to Employment Agreement. Your Employment Agreement will be
         amended as provided in this letter agreement. Except as so amended, all
         other terms and conditions in your Employment Agreement will remain the
         same and your Employment Agreement, as amended by this letter
         agreement, will remain in full force and effect and Viacom and you will
         have the rights and obligations set forth in your Employment Agreement.

9.       Miscellaneous.  For the avoidance of doubt, it is agreed that until the
         Resignation Date you shall continue to receive all compensation,
         benefits and perquisites provided under your Employment Agreement. If
         your Resignation Date occurs before June 30, 2005, Viacom will provide
         you with ten days' prior notice before you are required to vacate your
         current office space. In consideration of your resignation for Good
         Reason and the terms of this letter agreement, a written notice of
         Viacom's intention to not renew the Term of your Employment Agreement
         is waived. All amounts payable, and benefits and perquisites provided,
         under this letter agreement and your Employment Agreement will be made
         less applicable deductions and subject to applicable withholdings as
         may be required by applicable law. The payments and benefits to be
         provided by Viacom pursuant to this letter agreement and your
         Employment Agreement constitute liquidated damages and will be deemed
         to satisfy and be in full and final settlement of all obligations of
         Viacom to you under this letter agreement, your Employment Agreement
         and under any Viacom severance or income continuation plan. This letter
         agreement and your Employment Agreement contain the entire
         understanding of the parties hereto relating to the subject matter
         contained herein. Notwithstanding anything in this letter agreement to
         the contrary, the provisions of paragraph 8(f) in your Employment
         Agreement shall apply and, except as otherwise specifically provided in
         this letter agreement, your participation in all Viacom benefit plans
         and programs shall terminate on your Resignation Date (including,
         without limitation, Viacom's 401(k) and pension plans and LTD) and you
         shall continue to have all rights expressly provided in all Viacom
         benefit plans and programs and subject to any vested rights you may
         have under the terms of such plans or programs. The foregoing does not
         apply to your LTMIP stock options which shall be governed by paragraph
         3 above and, in the event of your Disability or death, paragraphs 6 and
         7 above, and the provisions of the LTMIP and the certificates for such
         stock option awards.





Richard J. Bressler
As of January 31, 2005
Page 5


If the foregoing correctly sets forth our understanding, please sign, date and
return all four copies of this letter agreement to the undersigned for execution
on behalf of Viacom. After (i) this letter agreement has been executed by Viacom
and a fully executed copy returned to you, (ii) Viacom, you and your attorneys,
Schulte Roth & Zabel LLP, have executed the Escrow Agreement, and (iii) you have
executed and delivered to Viacom a general release (other than for claims under
this letter agreement, or rights under any and all Viacom benefit plans and
programs in accordance with the terms of such plans or programs) on the attached
form (and not revoked the release within seven days), this letter agreement will
constitute a binding amendment to your Employment Agreement and a binding
agreement between us.

                                       Very truly yours,

                                       VIACOM INC.



                                        By:   /s/ William A. Roskin
                                             -----------------------------------
                                             Name:  William A. Roskin
                                             Title: Executive Vice President,
                                                    Human Resources and
                                                    Administration

ACCEPTED AND AGREED:


 /s/ Richard J. Bressler
- ----------------------------
    Richard J. Bressler

Dated:  /s/ 2/8/05
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