Document:

2000 Long-Term Management Incentive Plan
                                            Stock Option Certificate

                                               NAME: ____________

                                        NUMBER OF SHARES COVERED: _______

                                          EXERCISE PRICE:  $______

                                          DATE OF GRANT: __________

                                                 VIACOM INC.

                                    This certifies that Viacom Inc. (the
                           "Company") granted to the employee named above (the
                           "Participant") on the above date ("Date of Grant")
                           non-qualified stock options (the "Stock Options") to
                           purchase the number of shares shown above of the
                           Class B Common Stock, par value $0.01 per share, of
                           the Company ("Class B Common Stock"), for a purchase
                           price per share equal to the Exercise Price shown
                           above, under the Company's 2000 Long-Term Management
                           Incentive Plan, as amended from time to time (the
                           "Plan"), all on the terms and conditions attached
                           hereto as part hereof (the "Terms and Conditions").

                                                ------------------------------
                                                [Insert Name and Title of
                                                Executive signing Certificate]

<PAGE>

                              TERMS AND CONDITIONS

                                   Viacom Inc.
                    2000 Long-Term Management Incentive Plan
                            Stock Option Certificate

      The Stock Option Certificate attached hereto and the Terms and Conditions
for the stock option grant contained herein (the "Certificate"), together with
the Memorandum dated [Insert Date of Memorandum] and the certificates and/or
agreements delivered under the Plan in connection with each grant of stock
options under the Plan, constitutes the prospectus covering the shares of Class
B Common Stock subject to the Plan.

                                    ARTICLE I

                             TERMS OF STOCK OPTIONS

              Section 1.1 Grant of Stock Options. The Stock Options have been
awarded to the Participant subject to the terms and conditions contained in the
Certificate and in the Plan, the terms of which are hereby incorporated by
reference. A copy of the Plan will be provided upon request to the
Administrator, Long-Term Incentive Plans. The Plan has been filed with the
Securities and Exchange Commission. The capitalized terms used in the
Certificate that are not otherwise defined in the Certificate shall have the
meanings assigned to them in Article III hereof. The Stock Options are not
intended to be, or qualify as, "Incentive Stock Options" within the meaning of
section 422 of the Code.

              Section 1.2  Terms of Stock Options.

              (a) Vesting. The Stock Options shall be exercisable only to the
       extent the Participant is vested therein. The Stock Options shall vest
       [Insert Vesting Schedule - generally Stock Options vest in four equal
       installments on the first, second, third and fourth anniversaries of the
       Date of Grant].

              (b) Option Period. Except as provided in Section 1.2(c) hereof,
       the period during which the Stock Options may be exercised shall expire
       on the tenth anniversary of the Date of Grant (the "Expiration Date").

              (c) Exercise in the Event of Termination of Employment,
       Retirement, Permanent Disability or Death.

                   (i) Exercise in the Event of Termination of Employment other
              than for Cause, Retirement, Permanent Disability or Death. In the
              event of a termination of the Participant's employment other than
              for Cause or the Participant's Retirement, Permanent Disability or
              death, the Participant's Outstanding Stock Options can be
              exercised in accordance with the following provisions:

<PAGE>

                        (A) if the Participant ceases to be an employee of the
                   Company or any of its Subsidiaries by reason of the voluntary
                   termination by the Participant or the termination by the
                   Company or any of its Subsidiaries other than for Cause, his
                   or her Outstanding Stock Options may be exercised to the
                   extent then exercisable until the earlier of six months after
                   the date of such termination (or such longer period as may be
                   determined by the Committee, in its discretion) or the
                   Expiration Date;

                        (B) if the Participant ceases to be an employee of the
                   Company or any of its Subsidiaries by reason of the
                   Participant's Retirement, the Participant may exercise his or
                   her Outstanding Stock Options to the extent exercisable on
                   the date of Retirement until the earlier of the third
                   anniversary of such date (or such longer period as may be
                   determined by the Committee, in its discretion) or the
                   Expiration Date;

                        (C) if the Permanent Disability of the Participant
                   occurs, his or her Outstanding Stock Options may be
                   exercised to the extent exercisable upon the date of the
                   onset of such Permanent Disability until the earlier of the
                   third anniversary of such date (or such longer period as may
                   be determined by the Committee, in its discretion) or the
                   Expiration Date; and

                        (D) if a Participant dies during a period during which
                   his or her Stock Options could have been exercised by him or
                   her, his or her Outstanding Stock Options may be exercised
                   to the extent exercisable at the date of death by the person
                   who acquired the right to exercise such Stock Options by
                   will or the laws of descent and distribution or permitted
                   transfer until the earlier of the second anniversary of the
                   date of death (or such longer period as may be determined by
                   the Committee, in its discretion) or the Expiration Date.

              Upon the occurrence of an event described in clauses (A), (B), (C)
              or (D) of this Section 1.2(c)(i), all rights with respect to Stock
              Options that are not vested as of such event will be relinquished.
              A "termination of employment" occurs, for purposes of the Plan,
              when a Participant no longer works for the Company or any of its
              Subsidiaries. For the avoidance of doubt, the employment of a
              Participant who works for a Subsidiary shall terminate, for Plan
              purposes, on the date on which the Participant's employing company
              ceases to be a Subsidiary.

                   (ii) Termination for Cause. If the Participant's employment
              with the Company or any of its Subsidiaries ends due to a
              Termination for Cause then, unless the Committee in its discretion
              determines otherwise, all Outstanding Stock Options, whether or
              not then vested, shall terminate effective as of the date of such
              termination.

                  (iii) Exercise Periods following Termination of Employment,
              Retirement, Permanent Disability or Death. For the purposes of
              determining the dates on which Stock Options may be exercised
              following a termination of employment or Retirement, Permanent
              Disability or death, the day following the date of termination of
              employment or Retirement, Permanent Disability or death shall be
              the first day of the exercise period and the Stock Options may be
              exercised up to and including the last business day falling within
              the exercise period. Thus, if the last day of the exercise period
              is not a business day, then the last date the Stock Options may be
              exercised is the last business day preceding the end of the
              exercise period.

<PAGE>

              Section 1.3  Exercise of Stock Options.

              (a) Whole or Partial Exercise. Subject to the restrictions of
       Section 1.2(b) hereof, the Participant may exercise all vested
       Outstanding Stock Options granted hereunder at one time or in
       installments of 100 Stock Options (or in the whole number of unexercised
       Stock Options in which the Participant is vested, if such number is less
       than 100) by notice to the Administrator, Long-Term Incentive Plans,
       Viacom Inc., 1515 Broadway, New York, New York 10036, or to such agent(s)
       for the Company ("Agent") as the Company may from time to time specify,
       in such manner and at such address as may be specified from time to time
       by the Company. Such notice shall (i) state the number of full Stock
       Options being exercised, and (ii) be signed (or otherwise authorized in a
       manner acceptable to the Company) by the person or persons so exercising
       the Stock Options and, in the event the Stock Options are being exercised
       (pursuant to Section 1.2(c)(i) hereof) by any person or persons other
       than the Participant accompanied by proof satisfactory to the Company's
       counsel of the right of such person or persons to exercise the Stock
       Options. Information concerning any Agent and its address may be obtained
       by contacting the Administrator, Long-Term Incentive Plans.

              (b) Payment of Aggregate Option Price. Full payment of the
       aggregate Exercise Price which shall be determined by multiplying the
       number of Stock Options being exercised by the Exercise Price shall be
       made on or before the settlement date for the shares of Class B Common
       Stock issued pursuant to the exercise of the Stock Options. Such Exercise
       Price shall be paid in cash (e.g. personal bank check, certified check or
       official bank check). In addition, in accordance with Section 4.3 hereof,
       the Participant shall make an arrangement acceptable to the Company to
       pay to the Company an amount sufficient to satisfy the combined federal,
       state and local withholding tax obligations which arise in connection
       with the exercise of such Stock Options.

              (c) Issuance of Share Certificates. Upon satisfaction of the
       conditions set forth in Section 1.3(b) hereof, the Company shall deliver
       (or cause to be delivered) a certificate or certificates for the shares
       of Class B Common Stock issued pursuant to the exercise of the Stock
       Options to the Participant.

              (d) Outstanding Stock Options. The number of shares of Class B
       Common Stock subject to the Stock Options that is set forth on the Stock
       Option Certificate attached hereto or provided simultaneously online may
       not reflect the number of Outstanding Stock Options due to Stock Option
       exercises or adjustments pursuant to Article II.

                                   ARTICLE II

                       EFFECT OF CERTAIN CORPORATE CHANGES

              In the event of a merger, consolidation, stock split, dividend,
distribution, combination, reclassification or recapitalization that changes the
character or amount of the Class B Common Stock or any other changes in the
corporate structure, equity securities or capital structure of the Company, the
Committee shall make such adjustments to the number of shares of Class B Common
Stock subject to the Stock Options or the exercise price of the Stock Options,
in each case, as it deems appropriate. The Board may, in its sole discretion,
also make such other adjustments as it deems appropriate in order to preserve
the benefits or potential benefits intended to be made available hereunder. Such
determinations shall be conclusive and binding for all purposes.

<PAGE>

                                   ARTICLE III

                                   DEFINITIONS

              As used in the Certificate, the following terms shall have the
following meanings:

                  (a) "Board" shall mean the Board of Directors of the Company.

                  (b) "Code" shall mean the Internal Revenue Code of l986, as
       amended, including any successor law thereto.

                  (c) "Committee" shall mean the Compensation Committee of the
       Board (or such other Committee(s) as may be appointed or designated by
       the Board to administer the Plan.)

                  (d) "Fair Market Value" of a share of Class B Common Stock on
       a given date shall be the 4:00 p.m. (New York time) closing price on such
       date on the New York Stock Exchange or other principal stock exchange on
       which the Class B Common Stock is then listed, as reported by The Wall
       Street Journal (Northeast edition) or any other authoritative source
       selected by the Company.

                  (e) "Outstanding Stock Option" shall mean a Stock Option
       granted to the Participant which has not yet been exercised and which has
       not yet expired or been terminated in accordance with its terms.

                  (f) "Permanent Disability" shall have the same meaning as such
       term or a similar term has in the long-term disability policy maintained
       by the Company or a Subsidiary thereof for the Participant and in effect
       on the date of the onset of the Participant's Permanent Disability.

                  (g) "Retirement" shall mean the resignation or termination of
       employment after attainment of an age and years of service required for
       payment of an immediate pension pursuant to the terms of any qualified
       defined benefit retirement plan maintained by the Company or a Subsidiary
       in which the Participant participates; provided, however, that no
       resignation or termination prior to a Participant's 60th birthday shall
       be deemed a retirement unless the Committee so determines in its sole
       discretion; and provided, further, that the resignation or termination of
       employment other than a Termination for Cause after attainment of age 60
       shall be deemed a retirement if the Participant does not participate in a
       qualified defined benefit retirement plan maintained by the Company or a
       Subsidiary.

                  (h) "Subsidiary" shall mean a corporation (or a partnership or
       other enterprise) in which the Company owns or controls, directly or
       indirectly, more than 50% of the outstanding shares of stock normally
       entitled to vote for the election of directors (or comparable equity
       participation and voting power).

                  (i) "Termination for Cause" shall mean a termination of
       employment with the Company or any of its Subsidiaries which, as
       determined by the Committee, is by reason of (i) "cause" as such term or
       a similar term is defined in any employment agreement applicable to the
       Participant, or (ii) if there is no such employment agreement or if such
       employment agreement contains no such term, the Participant's: (A)
       dishonesty; (B) conviction of embezzlement, fraud or other conduct which
       would constitute a felony; (C) willful unauthorized disclosure of
       confidential information; (D) failure, neglect of or refusal

<PAGE>

       to substantially perform the duties of the Participant's employment; or
       (E) any other act or omission which is a material breach of the Company's
       policies regarding employment practices or the applicable federal, state
       and local laws prohibiting discrimination or which is materially
       injurious to the financial condition or business reputation of the
       Company or any Subsidiary thereof.

                  (j) To "vest" a Stock Option held by the Participant shall
       mean to render such Stock Option exercisable, subject to the terms of the
       Plan.

                                   ARTICLE IV

                                  MISCELLANEOUS

              Section 4.1 No Rights to Grants or Continued Employment. Neither
the Certificate, the Plan nor any action taken in accordance with such documents
shall confer upon the Participant any right to be employed by the Company or any
Subsidiary thereof, nor to be entitled to any remuneration or benefits not set
forth in the Plan or the Certificate, including the right to receive any future
grants under the Plan or any other plan of the Company or any Subsidiary thereof
or interfere with or limit the right of the Company or any Subsidiary thereof to
modify the terms of or terminate the Participant's employment at any time.

              Section 4.2 Restriction on Transfer. The rights of the Participant
with respect to the Stock Options shall not be transferable by the Participant
except (i) by will or the laws of descent and distribution or (ii) subject to
the prior approval of the Committee, for transfers to members of the
Participant's immediate family or trusts whose beneficiaries are members of the
Participant's immediate family, in each case subject to the condition that the
Committee shall be satisfied that such transfer is being made for estate and/or
tax planning purposes without consideration being received therefor and subject
to such other conditions as the Committee may impose.

              Section 4.3 Tax Withholding. As a condition to the exercise of the
Stock Options, the Participant shall make a payment in cash equal to the amount
of any federal, state, local or other taxes owed as a result of such exercise.

              Section 4.4 Stockholder Rights. The grant of Stock Options under
the Certificate shall not entitle the Participant or any permitted transferee to
any rights of a holder of shares of Class B Common Stock, other than when and
until share certificates are delivered to the Participant upon exercise of a
Stock Option.

              Section 4.5 No Restriction on Right of Company to Effect Corporate
Changes. The Certificate shall not affect in any way the right or power of the
Company or its stockholders to make or authorize any or all adjustments,
recapitalizations, reorganizations or other changes in the Company's capital
structure or its business, or any merger or consolidation of the Company, or any
issue of stock or of options, warrants or rights to purchase stock or of bonds,
debentures, preferred or prior preference stocks whose rights are superior to or
affect the Class B Common Stock or the rights thereof or which are convertible
into or exchangeable for Class B Common Stock, or the dissolution or liquidation
of the Company, or any sale or transfer of all or any part of its assets or
business, or any other corporate act or proceeding, whether of a similar
character or otherwise.

<PAGE>

              Section 4.6 Interpretation. In the event of a conflict or
ambiguity between the provisions of the Certificate and the provisions of any
employment agreement applicable to the Participant with respect to the Stock
Options, the provisions of such employment agreement shall be deemed controlling
to the extent such provisions are consistent with the provisions of the Plan and
are more favorable to the Participant than the provisions of the Certificate.

              Section 4.7 Breach of Covenants. In the event that the Committee
makes a good faith determination that the Participant committed a material
breach of the restrictive covenants relating to non-competition, no solicitation
of employees, confidential information or proprietary property in any employment
or other agreement applicable to the Participant during the one year period
after termination of the Participant's employment with the Company or a
Subsidiary, the Participant will be required to return any "gain" (as defined
below) realized on the Stock Options during the one year period prior to such
breach or at any time after such breach occurs. In addition, if the Committee
makes such determination, the Participant's Outstanding Stock Options will be
terminated. The "gain" on the Stock Options shall mean the difference between
the Fair Market Value and the exercise price of the Stock Options on date of
exercise.

              Section 4.8 Headings. The headings of articles and sections herein
are included solely for convenience of reference and shall not affect the
meaning of any of the provisions of the Certificate.

              Section 4.9 Governing Law. The Certificate and all rights
hereunder shall be construed in accordance with and governed by the laws of the
State of Delaware.Bill Roskin Stationery

                                                              March 14, 2005

[Insert Name and Address]

                 Re: Acceleration of "Underwater" Stock Options

Dear [insert first name],

              I am pleased to advise that, on March 8, 2005, the Compensation
Committee of Viacom's Board of Directors accelerated the vesting of a major
portion of your unvested stock options granted under the Company's Long-Term
Management Incentive Plans (LTMIP).

              The Committee felt it appropriate to require the Company's Section
16 officers to hold the shares acquired upon the exercise of these options until
their original vesting date or, if earlier, the executive's last day of
employment, other than shares needed to cover the exercise price and satisfy
withholding taxes.

              This acceleration does not apply to stock options granted since
the Company's new LTMIP was adopted on May 19, 2004 or granted under the
Company's "Fund the Future" program or stock options with an exercise price of
less than $38.

              Smith Barney (SB) has not yet updated its website to reflect this
acceleration but will do so shortly. Also, please be reminded that it is
Company policy that Section 16 officers are not permitted to exercise Viacom
stock options through the Company's program with SB. You must execute these
transactions through a broker selected by you.

              Of course, you should feel free to call me if you have any
questions.

                                                              Sincerely,

                                                              William A. Roskin

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