VIACOM INC
424B3, 2000-07-28
CABLE & OTHER PAY TELEVISION SERVICES
Previous: VIACOM INC, SC 13G, 2003-03-24
Next: DREYFUS NEW YORK TAX EXEMPT INTERMEDIATE BOND FUND, 24F-2NT, 2000-07-28



<PAGE>
   Filed Pursuant to Rule 424(b)(3)         Registration Statement No. 033-53485

P R O S P E C T U S  S U P P L E M E N T
(TO PROSPECTUS DATED MAY 10, 1995)

                                 $1,650,000,000

                                     [LOGO]
                  $1,150,000,000  7.70% SENIOR NOTES DUE 2010
                $500,000,000  7.875% SENIOR DEBENTURES DUE 2030

                  UNCONDITIONALLY GUARANTEED AS TO PAYMENT OF
                           PRINCIPAL AND INTEREST BY
                           VIACOM INTERNATIONAL INC.
                   (A WHOLLY OWNED SUBSIDIARY OF VIACOM INC.)
                                 -------------

        The senior notes due 2010 will bear interest at 7.70% per year and will
mature on July 30, 2010, and the senior debentures due 2030 will bear interest
at 7.875% per year and will mature on July 30, 2030. Viacom will pay interest on
the senior notes and senior debentures on January 30 and July 30 of each year.
The first interest payment will be made on January 30, 2001. The senior notes
and senior debentures will be redeemable at any time at their principal amount,
plus the applicable premium and accrued interest. Neither the senior notes nor
the senior debentures provide for a sinking fund.

        The senior notes and senior debentures will be unsecured obligations of
Viacom. The senior notes and senior debentures will rank senior to future debt
of Viacom that is subordinated to the senior notes and senior debentures and
will rank equally with debt of Viacom that is not subordinated to the senior
notes and senior debentures. The guarantee will be an unsecured obligation of
Viacom International. The guarantee will rank senior to debt of Viacom
International that is subordinated to the guarantee and will rank equally with
debt of Viacom International that is not subordinated to the guarantee. The
senior notes and senior debentures effectively will be junior to all liabilities
of Viacom's subsidiaries except Viacom International and all secured debt of
Viacom and its subsidiaries.

        Application has been made to list the senior notes and senior debentures
on the Luxembourg Stock Exchange.
                                ----------------

        Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if this
prospectus supplement or the accompanying prospectus is truthful or complete.
Any representation to the contrary is a criminal offense.
                                ----------------

<TABLE>
<CAPTION>
                                                              PER SENIOR                    PER SENIOR
                                                                 NOTE          TOTAL        DEBENTURE        TOTAL
                                                              ----------   --------------   ----------   --------------
<S>                                                           <C>          <C>              <C>          <C>
Public Offering Price.......................................    99.883%    $1,148,654,500     99.978%    $  499,890,000
Underwriting Discount.......................................     0.450%    $    5,175,000      0.875%    $    4,375,000
Proceeds to Viacom (before expenses)........................    99.433%    $1,143,479,500     99.103%    $  495,515,000
</TABLE>

        Interest on the senior notes and senior debentures will accrue from the
settlement date, which is expected to be August 1, 2000.

        The senior notes and senior debentures will be ready for delivery in
book-entry form only through the facilities of The Depository Trust Company,
Clearstream Luxembourg or Euroclear on or about August 1, 2000.
                                ----------------

                          JOINT BOOK-RUNNING MANAGERS

MERRILL LYNCH & CO.                                         SALOMON SMITH BARNEY
                                    --------

BANC OF AMERICA SECURITIES LLC

              CHASE SECURITIES INC.
                     DEUTSCHE BANC ALEX. BROWN

                            BNY CAPITAL MARKETS, INC.

                                    FLEETBOSTON ROBERTSON STEPHENS

July 25, 2000.
<PAGE>
    YOU SHOULD RELY ONLY ON THE INFORMATION CONTAINED OR INCORPORATED BY
REFERENCE IN THIS PROSPECTUS SUPPLEMENT AND THE ACCOMPANYING PROSPECTUS. NEITHER
WE NOR THE UNDERWRITERS HAVE AUTHORIZED ANY OTHER PERSON TO PROVIDE YOU WITH
DIFFERENT OR ADDITIONAL INFORMATION. IF ANYONE PROVIDES YOU WITH DIFFERENT OR
ADDITIONAL INFORMATION, YOU SHOULD NOT RELY ON IT. NEITHER WE NOR THE
UNDERWRITERS ARE MAKING AN OFFER TO SELL THESE SECURITIES IN ANY JURISDICTION
WHERE THE OFFER OR SALE IS NOT PERMITTED. YOU SHOULD ASSUME THAT THE INFORMATION
APPEARING IN OR INCORPORATED BY REFERENCE IN THIS PROSPECTUS SUPPLEMENT AND THE
ACCOMPANYING PROSPECTUS IS ACCURATE AS OF THEIR RESPECTIVE DATES. OUR BUSINESS,
FINANCIAL CONDITION, RESULTS OF OPERATIONS AND PROSPECTS MAY HAVE CHANGED SINCE
THEN.
                            ------------------------

                               TABLE OF CONTENTS

<TABLE>
<S>                                    <C>
PROSPECTUS SUPPLEMENT
Cautionary Statement Concerning
  Forward-Looking Statements.........     S-3
The Company..........................     S-4
Use of Proceeds......................     S-4
Recent Developments..................     S-4
Capitalization.......................     S-5
Summary Financial Data for Viacom....     S-6
Summary Financial Data for CBS.......     S-7
Summary Unaudited Pro Forma Financial
  Data...............................     S-8
Ratio of Earnings to Fixed Charges...     S-9
Description of Senior Securities.....    S-10
United States Federal Tax
  Considerations to Non-United States
  Holders............................    S-19
Underwriting.........................    S-22
Where You Can Find More Information..    S-23
Legal Matters........................    S-24
Experts..............................    S-24
General Information..................    S-25
PROSPECTUS
Available Information................       2
Incorporation of Certain Documents by
  Reference..........................       2
The Company..........................       3
Certain Considerations...............       3
Use of Proceeds......................       4
Ratio of Earnings to Fixed Charges
  and Ratio of Earnings to Combined
  Fixed
  Charges and Preferred Stock
  Dividends..........................       4
Description of Debt Securities.......       6
Description of Senior Debt
  Securities.........................      17
Description of Senior Subordinated
  Debt Securities....................      17
Description of Subordinated Debt
  Securities.........................      19
Description of Preferred Stock.......      20
Description of Contingent Value
  Rights.............................      22
Plan of Distribution.................      26
Legal Matters........................      27
Experts..............................      27
</TABLE>

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

    References to "Viacom" in this prospectus supplement and to "we," "us" and
"our" in this prospectus supplement are references to Viacom Inc. References to
"$" and "dollars" are to United States dollars.

    This prospectus supplement includes particulars given in compliance with the
rules governing the listing of securities on the Luxembourg Stock Exchange for
the purpose of giving information with regard to us. We accept responsibility
for the information contained in this prospectus supplement, and the
accompanying prospectus. The Luxembourg Stock Exchange takes no responsibility
for the contents of this document, and the accompanying prospectus, makes no
representation as to their accuracy or completeness and expressly disclaims any
liability whatsoever for any loss arising from or in reliance upon the whole or
any part of the contents of this prospectus supplement, and the accompanying
prospectus.

    Inquiries regarding our listing status on the Luxembourg Stock Exchange
should be directed to our Luxembourg listing agent, Kredietbank S.A. Luxembourg,
43, Boulevard Royal, L-2955, Luxembourg.

    We are offering the senior notes and senior debentures globally for sale in
those jurisdictions in the United States, Europe, Asia and elsewhere where it is
lawful to make such offers. The distribution of this prospectus supplement and
the accompanying prospectus and the offering of the senior notes

                                      S-2
<PAGE>
and senior debentures in some jurisdictions may be restricted by law. Persons
who receive this prospectus supplement and the prospectus should inform
themselves about and observe any such restrictions. This prospectus supplement
and the prospectus do not constitute, and may not be used in connection with, an
offer or solicitation by anyone in any jurisdiction in which such offer or
solicitation is not authorized or in which the person making such offer or
solicitation is not authorized or in which the person making such offer or
solicitation is not qualified to do so or to any person to whom it is unlawful
to make such offer or solicitation. See "Underwriting" beginning on page S-22.

    We confirm that this prospectus supplement and the documents incorporated by
reference into this prospectus supplement contain all information which is
material in the context of the issue of the senior notes and senior debentures
and that such information is true and accurate in all material respects and is
not misleading.

           CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS

    This prospectus supplement and the documents incorporated by reference into
this prospectus supplement contain both historical and forward-looking
statements. All statements other than statements of historical fact are, or may
be deemed to be, forward-looking statements within the meaning of section 27A of
the Securities Act of 1933 and section 21E of the Securities Exchange Act of
1934. These forward-looking statements are not based on historical facts, but
rather reflect our current expectations concerning future results and events.
These forward-looking statements generally can be identified by use of
statements that include phrases such as "believe," "expect," "anticipate,"
"intend," "plan," "foresee," "likely," "will" or other similar words or phrases.
Similarly, statements that describe our objectives, plans or goals are or may be
forward-looking statements. These forward-looking statements involve known and
unknown risks, uncertainties and other factors which may cause our actual
results, performance or achievements to be different from any future results,
performance and achievements expressed or implied by these statements. You
should review carefully all information, including the financial statements and
the notes to the financial statements, included or incorporated by reference
into this prospectus supplement.

    The following important factors, among others, could affect future results,
causing these results to differ materially from those expressed in our
forward-looking statements: changes in advertising market conditions; changes in
the public acceptance of our programming; changes in technology and its effect
on competition in our markets; changes in the Federal Communications Laws and
Regulations; and other economic, business, competitive and/or regulatory factors
affecting our businesses generally.

    These factors and the other risk factors described or incorporated by
reference are not necessarily all of the important factors that could cause
actual results to differ materially from those expressed in any of our
forward-looking statements. Other unknown or unpredictable factors also could
have material adverse effects on our future results. The forward-looking
statements included in this prospectus supplement are made only as of the date
of this prospectus supplement and under section 27A of the Securities Act and
section 21E of the Exchange Act and we do not have any obligation to publicly
update any forward-looking statements to reflect subsequent events or
circumstances. We cannot assure you that projected results or events will be
achieved.

                                      S-3
<PAGE>
                                  THE COMPANY

    We are a diversified entertainment company with operations in seven
segments: Cable Networks, Television Broadcasting, Infinity, Entertainment,
Video, Publishing and Online. The Cable Networks segment operates MTV: MUSIC
TELEVISION-Registered Trademark-, SHOWTIME-Registered Trademark-,
NICKELODEON-Registered Trademark-/NICK AT NITE-Registered Trademark-, VH1 MUSIC
FIRST-Registered Trademark-, TV LAND-Registered Trademark-, THE NASHVILLE
NETWORK-Registered Trademark- and COUNTRY MUSIC TELEVISION-TM-, among other
program services. The Television Broadcasting segment consists of
CBS-Registered Trademark- and UPN-Registered Trademark- television networks, our
39 broadcast television stations, and production and distribution of television
programming through PARAMOUNT TELEVISION-Registered Trademark- and CBS
ENTERPRISES-TM- (including EYEMARK ENTERTAINMENT-Registered Trademark- and KING
WORLD PRODUCTIONS). The Infinity segment consists of an approximately 65%
interest in Infinity Broadcasting Corporation which operates radio and outdoor
advertising properties, including INFINITY BROADCASTING-Registered Trademark-,
INFINITY OUTDOOR-TM- and TDI-Registered Trademark-. The Entertainment segment
produces and distributes theatrical motion pictures through PARAMOUNT
PICTURES-Registered Trademark-, operates movie theater and music publishing
operations and, through PARAMOUNT PARKS-Registered Trademark-, owns and operates
five theme parks and a themed attraction in the United States and Canada. The
Video segment consists of an approximately 82% interest in BLOCKBUSTER INC.,
which operates and franchises BLOCKBUSTER-Registered Trademark- video stores
worldwide. The Publishing segment publishes and distributes consumer books and
related multimedia products, under such imprints as SIMON &
SCHUSTER-Registered Trademark-, POCKET BOOKS-Registered Trademark-,
SCRIBNER-Registered Trademark- and THE FREE PRESS-TM-. The Online segment
provides online music and children's destinations featuring entertainment,
information, community tools and e-commerce, through Internet sites currently
related to MTV: MUSIC TELEVISION, NICKELODEON/NICK AT NITE, VH1 MUSIC FIRST and
COUNTRY MUSIC TELEVISION. The Online segment also includes other Internet
businesses, which consist primarily of the operation of the Internet sites
CBS.com and Country.com, and investments in other Internet based companies, such
as MarketWatch.com, SportsLine.com and iWon.com. We were incorporated in 1986
under the laws of the State of Delaware. Our principal offices are located at
1515 Broadway, New York, New York 10036 and our telephone number is
(212) 258-6000.

                                USE OF PROCEEDS

    We expect to use the net proceeds from the offering to repay commercial
paper with an average interest rate of approximately 6.8%. The net proceeds from
the offering before deducting expenses related to the offering will amount to
$1,638,994,500.

                              RECENT DEVELOPMENTS

    On May 4, 2000, CBS Corporation ("CBS") merged with and into Viacom. The
total purchase price of approximately $39.8 billion represents the issuance of
825.5 million shares of Viacom non-voting Class B common stock and 11,004 shares
of Viacom Series C convertible preferred stock (which were subsequently
converted into shares of our Class B common stock), the estimated fair value of
CBS stock options which were assumed by Viacom, and estimated transaction costs.
The merger will be accounted for by the purchase method of accounting and the
purchase price will be allocated to the tangible and identifiable intangible
assets acquired and liabilities assumed, according to their respective fair
values, with the excess purchase price being allocated to goodwill. In addition,
Viacom assumed approximately $3.7 billion of CBS debt.

                                      S-4
<PAGE>
                                 CAPITALIZATION

    The following table sets forth our capitalization as of March 31, 2000:

       - on a historical basis, as reported by Viacom;

       - on a pro forma basis to reflect the merger of CBS into Viacom; and

       - on a pro forma as adjusted basis to reflect the merger of CBS into
         Viacom and the issuance and sale of the senior notes and senior
         debentures, net of current portion.

<TABLE>
<CAPTION>
                                                                AT MARCH 31, 2000(1)
                                                                    (UNAUDITED)
                                                     ------------------------------------------
                                                                                    PRO FORMA
                                                                        PRO        AS ADJUSTED
                                                        VIACOM         FORMA         FOR THIS
                                                      HISTORICAL     FOR MERGER      OFFERING
                                                     ------------   ------------   ------------
                                                      (IN MILLIONS, EXCEPT PER SHARE AMOUNTS)
<S>                                                  <C>            <C>            <C>
Long-term debt:
  Continuing operations:
    Notes payable to banks (including commercial
      paper).......................................    $ 3,923        $ 4,952        $ 3,314
    Senior notes and debentures (5.875%-9.75%, due
      2000-2023)...................................      2,311          4,219          4,219
    Senior subordinated notes (8.875%-10.25%, due
      2001-2007)...................................         35            734            734
    Subordinated exchange debentures (11.375%, due
      2009)........................................         --             40             40
    Other..........................................         --             27             27
    Obligations under capital leases...............        559            588            588
    7.70% Senior notes, net of unamortized
      discount.....................................         --             --          1,149
    7.875% Senior debentures, net of unamortized
      discount.....................................         --             --            500
                                                       -------        -------        -------
      Total debt...................................      6,828         10,560         10,571
                                                       -------        -------        -------

Stockholders' equity:
    Class A common stock, par value $.01 per share;
      500.0 shares authorized; 139.2 shares
      issued.......................................          2              2              2
    Class B common stock, par value $.01 per share;
      3,000.0 shares authorized; 608.0 shares
      issued; and 1,433.5 shares on a pro forma
      basis for
      the merger...................................          6             14             14
    Additional paid-in capital.....................     10,353         50,395         50,395
    Retained earnings..............................      2,324          1,904          1,904
    Accumulated other comprehensive loss...........        (37)           (37)           (37)
                                                       -------        -------        -------
                                                        12,648         52,278         52,278
    Less: Treasury stock...........................      2,214          2,214          2,214
                                                       -------        -------        -------
      Total stockholders' equity...................     10,434         50,064         50,064
                                                       -------        -------        -------
      Total capitalization.........................    $17,262        $60,624        $60,635
                                                       =======        =======        =======
</TABLE>

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

(1) Except as set forth above and except as otherwise disclosed in any documents
    incorporated herein by reference, there has been no material change in the
    total capitalization of Viacom since March 31, 2000.

                                      S-5
<PAGE>
                       SUMMARY FINANCIAL DATA FOR VIACOM

    The following summary consolidated financial data reflect, on a historical
basis, our operations and financial position for the periods indicated.

<TABLE>
<CAPTION>
                                                    THREE MONTHS
                                                   ENDED MARCH 31,
                                                     (UNAUDITED)          YEAR ENDED DECEMBER 31,
                                                 -------------------   ------------------------------
                                                   2000       1999       1999       1998       1997
                                                 --------   --------   --------   --------   --------
                                                   (DOLLARS IN MILLIONS, EXCEPT PER SHARE AMOUNTS)
<S>                                              <C>        <C>        <C>        <C>        <C>
STATEMENT OF OPERATIONS DATA:
Revenues.......................................  $ 3,026    $ 2,951    $12,859    $12,096    $10,685
Depreciation and amortization..................      229        197        845        777        773
Operating income (a)...........................      255        278      1,247        752        685
Earnings (loss) from continuing operations.....       76         68        372        (44)       374
Net earnings (loss)............................       76         45        334       (122)       794
Net earnings (loss) attributable to common
  stock........................................       76         33        322       (150)       734
Basic earnings per common share:
    Earnings (loss) from continuing
      operations...............................  $   .11    $   .08    $   .52    $  (.10)   $   .44
    Net earnings (loss)........................      .11        .05        .46       (.21)      1.04
Diluted earnings per common share:
    Earnings (loss) from continuing
      operations...............................  $   .11    $   .08    $   .51    $  (.10)   $   .44
    Net earnings (loss)........................      .11        .05        .45       (.21)      1.04
OTHER DATA:
    EBITDA (b).................................  $   484    $   475    $ 2,092    $ 1,529    $ 1,458

                                                    AT MARCH 31,
                                                     (UNAUDITED)              AT DECEMBER 31,
                                                 -------------------   ------------------------------
                                                  2000       1999       1999       1998       1997
                                                 -------    -------    -------    -------    -------
                                                                (DOLLARS IN MILLIONS)
BALANCE SHEET DATA:
    Cash and cash equivalents..................  $   698    $   383    $   681    $   767    $   292
    Total assets...............................   24,324     23,053     24,486     23,613     28,289
    Long-term debt, net of current portion.....    6,547      5,613      5,698      3,813      7,423
    Stockholders' equity.......................   10,434     11,483     11,132     12,050     13,384
</TABLE>

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

(a) We define operating income as net earnings (loss) before extraordinary loss
    (net of tax), discontinued operations, minority interest, equity in loss of
    affiliated companies (net of tax), provision for income taxes, other items
    (net) and interest income and expense.

(b) We define EBITDA as operating income before depreciation and amortization,
    principally of goodwill related to business combinations. While many in the
    financial community consider EBITDA to be an important measure of
    comparative operating performance, you should consider it in addition to,
    but not as a substitute for or superior to, operating income, net earnings,
    cash flow and other measures of financial performance prepared in accordance
    with generally accepted accounting principles.

    Please also refer to the notes to consolidated financial statements
incorporated herein by reference for additional information on transactions and
accounting classifications that have affected the comparability of the periods
presented above.

                                      S-6
<PAGE>
                         SUMMARY FINANCIAL DATA FOR CBS

    The following summary consolidated financial data reflect, on a historical
basis, the operations and financial position of CBS for the periods indicated.

<TABLE>
<CAPTION>
                                                    THREE MONTHS
                                                   ENDED MARCH 31,
                                                     (UNAUDITED)          YEAR ENDED DECEMBER 31,
                                                 -------------------   ------------------------------
                                                   2000       1999       1999       1998       1997
                                                 --------   --------   --------   --------   --------
                                                   (DOLLARS IN MILLIONS, EXCEPT PER SHARE AMOUNTS)
<S>                                              <C>        <C>        <C>        <C>        <C>
STATEMENT OF OPERATIONS DATA:
Revenues.......................................  $ 2,406    $ 1,769    $ 7,373    $ 6,805    $ 5,367
Depreciation and amortization..................      297        149        669        571        445
Operating income (a)...........................      222        123        956        482        253
Earnings (loss) from continuing operations.....      (40)        25        157        (12)      (131)
Net earnings (loss)............................      (38)       387        780        (21)       549
Basic earnings per common share:
    Earnings (loss) from continuing
      operations...............................  $  (.05)   $   .04    $   .22    $  (.02)   $  (.24)
    Net earnings (loss)........................     (.05)       .56       1.10       (.03)       .84
Diluted earnings per common share:
    Earnings (loss) from continuing
      operations...............................  $  (.05)   $   .04    $   .22    $  (.02)   $  (.24)
    Net earnings (loss)........................     (.05)       .55       1.08       (.03)       .84
OTHER DATA:
    EBITDA (b).................................  $   519    $   272    $ 1,625    $ 1,053    $   698

                                                    AT MARCH 31,
                                                     (UNAUDITED)              AT DECEMBER 31,
                                                 -------------------   ------------------------------
                                                  2000       1999       1999       1998       1997
                                                 -------    -------    -------    -------    -------
                                                                (DOLLARS IN MILLIONS)
BALANCE SHEET DATA:
    Cash and cash equivalents..................  $   318    $   987    $   194    $   798    $     8
    Total assets...............................   33,093     20,526     33,125     20,139     16,715
    Long-term debt, net of current portion.....    3,670      2,315      3,753      2,506      3,236
    Stockholders' equity.......................   15,790      9,702     16,147      9,054      8,080
</TABLE>

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

(a) We define operating income as net earnings (loss) before extraordinary loss
    (net of tax), discontinued operations, minority interest, equity in loss of
    affiliated companies (net of tax), provision for income taxes, other income
    (net) and interest income and expense.

(b) We define EBITDA as operating income before depreciation and amortization,
    principally of goodwill related to business combinations. While many in the
    financial community consider EBITDA to be an important measure of
    comparative operating performance, you should consider it in addition to,
    but not as a substitute for or superior to, operating income, net earnings,
    cash flow and other measures of financial performance prepared in accordance
    with generally accepted accounting principles.

    Please also refer to the notes to consolidated financial statements
incorporated herein by reference for additional information on transactions and
accounting classifications that have affected the comparability of the periods
presented above.

                                      S-7
<PAGE>
                   SUMMARY UNAUDITED PRO FORMA FINANCIAL DATA

    The following summary unaudited pro forma consolidated financial data give
effect to the merger of CBS into Viacom for the periods indicated.

<TABLE>
<CAPTION>
                                                             THREE MONTHS ENDED     YEAR ENDED
                                                                 MARCH 31,         DECEMBER 31,
                                                                    2000               1999
                                                             ------------------   --------------
                                                                    (DOLLARS IN MILLIONS,
                                                                  EXCEPT PER SHARE AMOUNTS)
<S>                                                          <C>                  <C>
STATEMENT OF OPERATIONS DATA:
Revenues...................................................       $ 5,469            $21,803
Depreciation and amortization..............................           684              2,656
Operating income (a).......................................           291              1,542
Earnings (loss) from continuing operations.................          (128)              (233)
  Earnings (loss) from continuing operations per common
    share:
    Basic..................................................       $  (.08)           $  (.16)
    Diluted................................................          (.08)              (.16)
OTHER DATA:
  EBITDA (b)...............................................       $   975            $ 4,198

                                                                AT MARCH 31,
                                                             ------------------
                                                                 2000
                                                                  -------
                                                             (DOLLARS IN
                                                                 MILLIONS)
BALANCE SHEET DATA:
  Cash and cash equivalents................................       $   716
  Total assets.............................................        84,451
  Long-term debt, net of current portion...................        10,217
  Stockholders' equity.....................................        50,064
</TABLE>

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

(a) We define operating income as net earnings (loss) before extraordinary loss
    (net of tax), discontinued operations, minority interest, equity in loss of
    affiliated companies (net of tax), provision for income taxes, other items,
    net, interest income and expense.

(b) We define EBITDA as operating income before depreciation and amortization,
    principally of goodwill related to business combinations. While many in the
    financial community consider EBITDA to be an important measure of
    comparative operating performance, you should consider it in addition to,
    but not as a substitute for or superior to, operating income, net earnings,
    cash flow and other measures of financial performance prepared in accordance
    with generally accepted accounting principles.

    Please also refer to the Viacom Inc. Unaudited Pro Forma Combined Condensed
Financial Information incorporated herein by reference, for additional
information.

                                      S-8
<PAGE>
                       RATIO OF EARNINGS TO FIXED CHARGES
                                  (UNAUDITED)

    The consolidated ratio of earnings to fixed charges for Viacom, on a
historical basis and on a pro forma basis to give effect to the merger of CBS
into Viacom, was as follows for each of the periods indicated:

<TABLE>
<CAPTION>
                                         THREE MONTHS                               YEAR ENDED DECEMBER 31,
                                             ENDED            -------------------------------------------------------------------
                                        MARCH 31, 2000                 1999               1998       1997       1996       1995
                                    -----------------------   -----------------------   --------   --------   --------   --------
                                      VIACOM     PRO FORMA      VIACOM     PRO FORMA
                                    HISTORICAL   FOR MERGER   HISTORICAL   FOR MERGER               VIACOM HISTORICAL
                                    ----------   ----------   ----------   ----------   -----------------------------------------
<S>                                 <C>          <C>          <C>          <C>          <C>        <C>        <C>        <C>
Ratio of Earnings to Fixed
  Charges.........................     1.8x         1.3x         2.2x         1.8x        1.1x       2.0x       1.4x       1.5x
</TABLE>

                                      S-9
<PAGE>
                        DESCRIPTION OF SENIOR SECURITIES

    This description of the terms of the senior notes and senior debentures
supplements the description of the general terms and provisions of the Senior
Debt Securities in the accompanying prospectus. If this summary differs in any
way from that in the prospectus, you should rely on this summary. The senior
notes and senior debentures are part of the Senior Debt Securities we registered
in May 1995 for issuance on terms to be determined at the time of their sale.
Whenever we refer in this prospectus supplement to both the senior notes and
senior debentures, we will refer to them as "senior securities," and whenever we
refer in this Description of Senior Securities to terms defined in the Senior
Indenture referred to below, we intend that the defined terms be incorporated
herein by reference. As used in this Description of Senior Securities, the terms
"we," "our," "us" and "Viacom" do not include any of our current or future
subsidiaries, unless the context otherwise indicates.

GENERAL

    The senior securities will be issued under the Indenture, dated as of
May 15, 1995, among us, our wholly owned subsidiary, Viacom International, as
guarantor, and Citibank, N.A., as successor to State Street Bank and Trust
Company and The First National Bank of Boston, Trustee. The Indenture was
supplemented by the First Supplemental Indenture, dated as of May 24, 1995, was
supplemented and amended by the Second Supplemental Indenture and Amendment
No. 1, dated as of December 15, 1995, was supplemented by the Third Supplemental
Indenture, dated as of July 22, 1996, and will be further supplemented by the
Fourth Supplemental Indenture to be dated as of August 1, 2000. We refer to the
Indenture, as so supplemented and amended, as the "Senior Indenture."

    The senior securities initially will be limited to $1,650,000,000 principal
amount, consisting of $1,150,000,000 principal amount of senior notes and
$500,000,000 principal amount of senior debentures. Each senior security will
bear interest at the applicable annual rate noted on the cover page of this
prospectus supplement. Interest will be payable on January 30 and July 30 of
each year, beginning January 30, 2001. Interest on the senior securities will be
paid to Holders of record on the January 15 or July 15 immediately before the
interest payment date. The senior notes will mature on July 30, 2010 and the
senior debentures will mature on July 30, 2030. The senior securities will be
redeemable at any time by Viacom at their principal amount, plus the applicable
premium and accrued interest. The senior securities do not provide for any
sinking fund.

    The senior securities will be unsecured obligations of Viacom. The senior
securities will rank senior to debt of Viacom that is subordinated to the senior
securities and will rank equally with debt of Viacom that is not subordinated to
the senior securities. The guarantee will be an unsecured obligation of Viacom
International. The guarantee will rank senior to debt of Viacom International
that is subordinated to the guarantee and will rank equally with debt of Viacom
International that is not subordinated to the guarantee. The senior securities
effectively will be junior to all liabilities of Viacom's subsidiaries except
Viacom International and all secured debt of Viacom and its subsidiaries.

    As of March 31, 2000, our subsidiaries, other than Viacom International, had
approximately $3.3 billion of indebtedness outstanding. This indebtedness was
primarily incurred by Infinity Broadcasting Corporation and its subsidiaries and
Blockbuster Inc. Viacom, the issuer of the senior securities, owns several
operating subsidiaries, including Viacom International, the guarantor of the
senior securities, Blockbuster Inc. with corporate headquarters at 120 Elm
Street, Dallas, Texas 75270 and Infinity Broadcasting Corporation with corporate
headquarters at 40 West 57th Street, New York, New York 10019. Viacom
International is a wholly owned subsidiary of Viacom, with approximately
$1,047.1 billion of indebtedness outstanding as of March 31, 2000. Viacom
International was incorporated under the laws of the State of Delaware and has
its corporate headquarters located at 1515 Broadway, New York, New York 10036.
The operating assets of Viacom International and its subsidiaries include MTV:
Music Television-Registered Trademark-, Showtime-Registered Trademark-,
Nickelodeon-Registered Trademark-/Nick at Nite-Registered Trademark-, VH1 Music

                                      S-10
<PAGE>
First-Registered Trademark-, TV Land-Registered Trademark-, The Nashville
Network-Registered Trademark-, Country Music Television-TM-, approximately 35
broadcast television stations, Blockbuster Inc., publishing imprints such as
Simon & Schuster-Registered Trademark- and The Free Press-TM-, the businesses of
Paramount and certain Internet related sites.

OPTIONAL REDEMPTION

    The senior securities will be redeemable at any time, at our option, in
whole or in part, on not less than 30 nor more than 60 days' prior notice, prior
to their maturity at a redemption price equal to the sum of the principal amount
of the senior securities, the Make-Whole Amount described below and any accrued
and unpaid interest to the date of redemption. Holders of record on a record
date that is on or prior to a redemption date will be entitled to receive
interest due on the interest payment date.

    The term "Make-Whole Amount" means, the excess, if any, of (i) the aggregate
present value as of the date of the redemption of principal being redeemed and
the amount of interest (exclusive of interest accrued to the date of redemption)
that would have been payable if redemption had not been made, determined by
discounting, on a semiannual basis, the remaining principal and interest at the
Reinvestment Rate described below (determined on the third business day
preceding the date notice of redemption is given) from the dates on which the
principal and interest would have been payable if the redemption had not been
made, to the date of redemption, over (ii) the aggregate principal amount of the
senior securities being redeemed.

    The term "Reinvestment Rate" means for the senior notes 0.25% and for the
senior debentures 0.35%, in each case plus the arithmetic mean of the yields
under the heading "Week Ending" published in the most recent weekly Statistical
Release under the caption "Treasury Constant Maturities" for the maturity
(rounded to the nearest month) corresponding to the remaining life to maturity,
as of the payment date of the principal being redeemed or paid. If no maturity
exactly corresponds to the maturity, yields for the two published maturities
most closely corresponding to the maturity would be so calculated and the
Reinvestment Rate would be interpolated or extrapolated on a straight-line
basis, rounding to the nearest month. The most recent Statistical Release
published prior to the date of determination of the Make-Whole Amount will be
used for purposes of calculating the Reinvestment Rate.

    The Make-Whole Amount will be calculated by an independent investment
banking institution of national standing appointed by us. If we fail to make the
appointment at least 45 business days prior to the date of redemption, or if the
institution is unwilling or unable to make the calculation, the calculation will
be made by an independent investment banking institution of national standing
appointed by the Trustee.

    If the Reinvestment Rate is not available as described above, the
Reinvestment Rate will be calculated by interpolation or extrapolation of
comparable rates selected by the independent investment banking institution.

    In the case of any partial redemption, selection of the senior securities
for redemption will be made by the Trustee in compliance with the requirements
of the principal national securities exchange, if any, on which the senior
securities are listed or, if the senior securities are not listed on a national
securities exchange, by lot or by such other method as the Trustee in its sole
discretion deems to be fair and appropriate.

FURTHER ISSUES

    We may from time to time without notice to, or the consent of, the Holders
of a series of senior securities, create and issue further senior securities of
the same series, equal in rank to the senior securities in all respects (or in
all respects except for the payment of interest accruing prior to the issue date
of the new securities or except for the first payment of interest following the
issue date of the new

                                      S-11
<PAGE>
securities) and so that the new securities may be consolidated and form a single
series with the relevant series of senior securities and have the same terms as
to status, redemption or otherwise as the relevant series of senior securities.
In the event that we issue additional senior securities of the same series, we
will prepare a new prospectus and make a new application to list such securities
on the Luxembourg Stock Exchange.

PAYMENT OF ADDITIONAL AMOUNTS

    We will, subject to the exceptions and limitations set forth below, pay as
additional interest on the senior securities, such additional amounts as are
necessary in order that the net payment by us or a paying agent of the principal
of and interest on the senior securities to a Holder who is a non-United States
person (as defined below), after deduction for any present or future tax,
assessment or other governmental charge of the United States or a political
subdivision or taxing authority thereof or therein, imposed by withholding with
respect to the payment, will not be less than the amount provided in the series
of senior securities to be then due and payable; provided, however, that the
foregoing obligation to pay additional amounts shall not apply:

        (1) to any tax, assessment or other governmental charge that is imposed
    or withheld solely by reason of the Holder, or a fiduciary, settlor,
    beneficiary, member or shareholder of the Holder if the Holder is an estate,
    trust, partnership or corporation, or a person holding a power over an
    estate or trust administered by a fiduciary Holder, being considered as:

           (a) being or having been present or engaged in a trade or business in
       the United States or having had a permanent establishment in the United
       States;

           (b) having a current or former relationship with the United States,
       including a relationship as a citizen or resident thereof;

           (c) being or having been a foreign or domestic personal holding
       company, a passive foreign investment company or a controlled foreign
       corporation with respect to the United States or a corporation that has
       accumulated earnings to avoid United States federal income tax;

           (d) being or having been a "10-percent shareholder" of ours as
       defined in Section 871(h)(3) of the United States Internal Revenue Code
       or any successor provision; or

           (e) being a bank receiving payments on an extension of credit made
       pursuant to a loan agreement entered into in the ordinary course of its
       trade or business;

        (2) to any Holder that is not the sole beneficial owner of a senior
    security, or a portion thereof, or that is a fiduciary or partnership, but
    only to the extent that a beneficiary or settlor with respect to the
    fiduciary, a beneficial owner or member of the partnership would not have
    been entitled to the payment of an additional amount had the beneficiary,
    settlor, beneficial owner or member received directly its beneficial or
    distributive share of the payment;

        (3) to any tax, assessment or other governmental charge that is imposed
    or withheld by reason of the failure of the Holder or any other person to
    comply with certification, identification or information reporting
    requirements concerning the nationality, residence, identity or connection
    with the United States, or otherwise with respect to the status, of the
    Holder or beneficial owner of such senior security (or any beneficiary,
    settlor, beneficial owner or member thereof), if compliance is required by
    statute, by regulation of the United States Treasury Department or by an
    applicable income tax treaty to which the United States is a party, or by
    any official interpretation or ruling promulgated pursuant to any of the
    foregoing, as a precondition to exemption from such tax, assessment or other
    governmental charge;

                                      S-12
<PAGE>
        (4) to any tax, assessment or other governmental charge that is imposed
    otherwise than by withholding by us or a paying agent from the payment;

        (5) to any tax, assessment or other governmental charge that is imposed
    or withheld solely by reason of a change in law, regulation, or
    administrative or judicial interpretation that becomes effective more than
    15 days after the payment becomes due or is duly provided for, whichever
    occurs later;

        (6) to any estate, inheritance, gift, sales, excise, transfer, wealth or
    personal property tax or similar tax, assessment or other governmental
    charge;

        (7) to any tax, assessment or other governmental charge required to be
    withheld by any paying agent from any payment of principal of or interest on
    any senior security, if such payment can be made without such withholding by
    any other paying agent; or

        (8) in the case of any combination of items (1), (2), (3), (4), (5), (6)
    and (7).

    The senior securities are subject in all cases to any tax, fiscal or other
law or regulation or administrative or judicial interpretation applicable
thereto. Except as specifically provided under this heading "Payment of
Additional Amounts" and under the heading "Description of Senior Securities--
Redemption for Tax Reasons," we shall not be required to make any payment with
respect to any tax, assessment or other governmental charge imposed by any
government or a political subdivision or taxing authority thereof or therein.

    As used under this heading, "Payment of Additional Amounts" and under the
heading "Description of Senior Securities--Redemption for Tax Reasons" and
"United States Federal Tax Considerations to Non-United States Holders" the
terms "United States" and "U.S." mean the United States of America (including
the States and the District of Columbia) and its territories, its possessions
and other areas subject to its jurisdiction, and the term "United States person"
means any individual who is a citizen or resident of the United States, a
corporation, partnership or other entity created or organized in or under the
laws of the United States, any State thereof or the District of Columbia (other
than a partnership that is not treated as a United States person under any
applicable Treasury regulations), any estate the income of which is subject to
United States federal income taxation regardless of its source, or any trust if
a court within the United States is able to exercise primary supervision over
the administration of the trust and one or more United States persons have the
authority to control all substantial decisions of the trust. Notwithstanding the
preceding sentence, to the extent provided in the Treasury regulations, certain
trusts in existence on August 20, 1996, and treated as United States persons
prior to such date that elect to continue to be treated as United States
persons, will also be United States persons. "Non-United States person" means a
person who is not a United States person.

REDEMPTION FOR TAX REASONS

    If, as a result of any change in, or amendment to, the laws (or any
regulations or rulings promulgated thereunder) of the United States (or any
political subdivision or taxing authority thereof or therein), or any change in,
or amendments to, an official position regarding the application or
interpretation of such laws, regulations or rulings, which change or amendment
is announced or becomes effective on or after the date of this prospectus
supplement, we become or, based upon a written opinion of independent counsel
selected by us, will become obligated to pay additional amounts as described
herein under the heading "Description of Senior Securities--Payment of
Additional Amounts" with respect to a series of senior securities, we may, at
our option, redeem, as a whole, but not in part, the relevant series of senior
securities on not less than 30 nor more than 60 days' prior notice, at a
redemption price equal to 100% of their principal amount together with interest
accrued but unpaid thereon to the date fixed for redemption.

                                      S-13
<PAGE>
MERGER, CONSOLIDATION OR SALE OF ASSETS

    Under the terms of the Senior Indenture (Section 801 of the Senior
Indenture), we and Viacom International generally would be permitted to
consolidate or merge with another corporation. We and Viacom International would
also be permitted to sell all or substantially all of our assets to another
Person. However, we may not take any of these actions unless all the following
conditions are met:

    - The merger, consolidation or sale of assets must not cause an Event of
      Default. See "Defaults and Remedies" on page S-15. An Event of Default for
      this purpose would also include any event that would be an Event of
      Default if the notice or time requirements were disregarded.

    - The Person we would merge or consolidate with or sell all or substantially
      all of our assets to must be organized under the laws of the United States
      or any state thereof, unless that Person is Viacom or Viacom
      International.

    - The Person we would merge or consolidate with or sell all or substantially
      all of our assets to must agree to be legally responsible for the
      Outstanding Senior Securities and the Senior Indenture, unless that Person
      is Viacom or Viacom International.

    - We or Viacom International must deliver specified certificates and
      documents to the Trustee.

    We and Viacom International may merge or consolidate with, or sell all or
substantially all of our assets to each other or our Subsidiaries.

    When we make reference in this section to the sale of "all or substantially
all of our assets," we mean property and assets contributing in the aggregate to
at least 80% of our total consolidated revenues.

LIMITATIONS ON LIENS

    We covenant in the Senior Indenture (Section 1010 of the Senior Indenture)
that we will not create, assume or permit any Lien on any of our property or
assets, unless we secure the senior securities at least equally and ratably to
the secured Indebtedness. The foregoing only applies to Liens that in the
aggregate exceed 15% of our Total Consolidated Assets, reduced by the
Attributable Debt related to any permitted sale leaseback arrangement. See
"Limitations on Sale and Leaseback Transactions" below. The restrictions do not
apply to Capitalized Leases or Indebtedness that is secured by:

    (a) Liens existing when we issue the senior securities;

    (b) Liens on any property or any Indebtedness of a Person existing at the
       time the Person becomes a Subsidiary (whether by acquisition, merger or
       consolidation);

    (c) Liens in favor of us or our Subsidiaries; and

    (d) Liens existing at the time of acquisition of the assets secured thereby
       and purchase money Liens.

    The restrictions do not apply to extensions, renewals or replacements of any
of the foregoing types of Liens.

LIMITATIONS ON SALE AND LEASEBACK TRANSACTIONS

    We covenant in the Senior Indenture (Section 1011 of the Senior Indenture)
that neither we nor any Restricted Subsidiary will enter into any arrangement
with any Person to lease a Principal Property (except for any arrangements that
exist at the time we issue the senior securities or that exist at the

                                      S-14
<PAGE>
time any Person that owns a Principal Property becomes a Restricted Subsidiary)
which has been or is to be sold by us or the Restricted Subsidiary to the Person
unless:

    (a) the sale and leaseback arrangement involves a lease for a term of not
       more than three years;

    (b) the sale and leaseback arrangement is entered into between us and any
       Subsidiary or between our Subsidiaries;

    (c) we or the Restricted Subsidiary would be entitled to incur indebtedness
       secured by a Lien on the Principal Property at least equal in amount to
       the Attributable Debt permitted pursuant to the first paragraph under
       "Limitations on Liens" without having to secure equally and ratably the
       senior securities;

    (d) the proceeds of the sale and leaseback arrangement are at least equal to
       the fair market value (as determined by our Board of Directors in good
       faith) of the property and we apply within 180 days after the sale an
       amount equal to the greater of the net proceeds of the sale or the
       Attributable Debt associated with the property to (i) the retirement of
       long-term debt for borrowed money that is not subordinated to the senior
       securities and that is not debt to us or a Subsidiary, or (ii) the
       purchase or development of other comparable property; or

    (e) the sale and leaseback arrangement is entered into within 180 days after
       the initial acquisition of the Principal Property subject to the sale and
       leaseback arrangement.

    The term "Attributable Debt," with regard to a sale and leaseback
arrangement of a Principal Property, is defined in the Senior Indenture as an
amount equal to the lesser of: (a) the fair market value of the property (as
determined in good faith by our Board of Directors); and (b) the present value
of the total net amount of rent payments to be made under the lease during its
remaining term, discounted at the rate of interest set forth or implicit in the
terms of the lease, compounded semi-annually. The calculation of the present
value of the total net amount of rent payments is subject to adjustments
specified in the Senior Indenture.

    The term "Principal Property" is defined in the Senior Indenture to include
any parcel of our or our Restricted Subsidiaries' real property and related
fixtures or improvements located in the United States, the aggregate book value
of which on the date of determination exceeds $1.0 billion. The term "Principal
Property" does not include any telecommunications equipment or parcels of real
property and related fixtures or improvements which are determined in good faith
by our Board of Directors, not to be of material importance to our and our
Subsidiaries' total business. As of the date of this prospectus supplement,
neither we nor any of our Subsidiaries own any Principal Property.

DEFAULTS AND REMEDIES

    You will have specified rights if an Event of Default occurs in respect of
the senior securities of your series and such Event of Default is not cured, as
described below. (Section 501 of the Senior Indenture)

    The term "Event of Default" in respect of the senior securities of your
series means any of the following:

    - We do not pay interest on a senior security of such series within 30 days
      of its due date.

    - We do not pay the principal of or any premium on a senior security of such
      series on its due date.

    - We remain in breach of a covenant or warranty in respect of the Senior
      Indenture for 60 days after we receive a written notice of default. The
      notice must be sent by either the Trustee or Holders of at least 25% in
      principal amount of a series of Outstanding Senior Securities.

                                      S-15
<PAGE>
    - We are in default under agreements under which we have Indebtedness
      outstanding in excess of $250 million in the aggregate and which
      Indebtedness is due either at maturity or has been declared due prior to
      maturity and remains unpaid.

    - We fail to pay a money judgment in excess of $250 million for a period of
      60 days after it becomes final and not subject to further appeal.

    - We or Viacom International file for bankruptcy, or other specified events
      of bankruptcy, insolvency or reorganization occur.

    If an Event of Default has occurred and has not been cured, the Trustee or
the Holders of at least 25% in principal amount of the senior securities of the
affected series may declare the entire principal amount (and premium, if any)
of, and all the accrued interest on, the senior securities of that series to be
due and immediately payable. This is called a declaration of acceleration of
maturity. There is no action on the part of the Trustee or any Holder of senior
securities required for such declaration if the Event of Default is a
bankruptcy, insolvency or reorganization. Holders of a majority in principal
amount of the senior securities of a series may also waive certain past defaults
under the Senior Indenture on behalf of all of the Holders of such series of
senior securities. A declaration of acceleration of maturity may be canceled,
under specified circumstances, by the Holders of at least a majority in
principal amount of a series of senior securities. (Section 502 of the Senior
Indenture)

    Except in cases of default, where the Trustee has special duties, the
Trustee is not required to take any action under the Senior Indenture at the
request of Holders unless the Holders offer the Trustee reasonable protection
from expenses and liability satisfactory to the Trustee. If a reasonable
indemnity is provided, the Holders of a majority in principal amount of a series
of senior securities may direct the time, method and place of conducting any
lawsuit or other formal legal action seeking any remedy available to the
Trustee. The Trustee may refuse to follow those directions in specified
circumstances. (Section 512 of the Senior Indenture) No delay or omission in
exercising any right or remedy will be treated as a waiver of the right, remedy
or Event of Default. (Section 511 of the Senior Indenture)

    Before Holders are allowed to bypass the Trustee and bring a lawsuit or
other formal legal action or take other steps to enforce their rights or protect
their interests relating to the senior securities, the following must occur:

    - Holders must give the Trustee written notice that an Event of Default has
      occurred and remains uncured;

    - Holders of at least 25% in principal amount of the outstanding senior
      securities of a series must make a written request that the Trustee take
      action because of the default and must offer the Trustee indemnity
      satisfactory to the Trustee against the cost and other liabilities of
      taking that action;

    - The Trustee must have failed to take action for 60 days after receipt of
      the notice and offer of indemnity; and

    - Holders of a majority in principal amount of the senior securities of a
      series must not have given the Trustee a direction inconsistent with the
      above notice. (Section 507 of the Senior Indenture)

    However, you are entitled at any time to bring a lawsuit for the payment of
money due on your senior securities on or after the due date. (Section 508 of
the Senior Indenture)

BOOK ENTRY, DELIVERY AND FORM

    Each series of senior securities will be issued in one or more fully
registered global securities which will be deposited with, or on behalf of, The
Depository Trust Company, New York, New York (the "Depository") and registered
in the name of Cede & Co., the Depository's nominee. We will not

                                      S-16
<PAGE>
issue senior securities in certificated form. Beneficial interests in the global
securities will be represented through book-entry accounts of financial
institutions acting on behalf of beneficial owners as direct and indirect
participants in the Depository (the "Depository Participants"). Investors may
elect to hold interests in the global securities through either the Depository
(in the United States), or Clearstream Banking, societe anonyme ("Clearstream
Luxembourg") or Morgan Guaranty Trust Company of New York, Brussels Office, as
operator of the Euroclear System ("Euroclear") (in Europe) if they are
participants of those systems, or, indirectly, through organizations that are
participants in those systems. Clearstream Luxembourg and Euroclear will hold
interests on behalf of their participants through customers' securities accounts
in Clearstream Luxembourg's and Euroclear's names on the books of their
respective depositaries, which in turn will hold such interests in customers'
securities accounts in the depositaries' names on the books of the Depository.
At the present time, Citibank, N.A. acts as U.S. depositary for Clearstream
Luxembourg and The Chase Manhattan Bank acts as U.S. depositary for Euroclear
(the "U.S. Depositaries"). Beneficial interests in the global securities will be
held in denominations of $1,000 and integral multiples thereof. Except as set
forth below or in the prospectus, the global securities may be transferred, in
whole but not in part, only to another nominee of the Depository or to a
successor of the Depository or its nominee.

    Clearstream Luxembourg has advised us that it is incorporated under the laws
of Luxembourg as a professional depositary. Clearstream Luxembourg holds
securities for its participating organizations ("Clearstream Luxembourg
Participants") and facilitates the clearance and settlement of securities
transactions between Clearstream Luxembourg Participants through electronic
book-entry changes in accounts of Clearstream Luxembourg Participants, thereby
eliminating the need for physical movement of certificates. Clearstream
Luxembourg provides to Clearstream Luxembourg Participants, among other things,
services for safekeeping, administration, clearance and settlement of
internationally traded securities and securities lending and borrowing.
Clearstream Luxembourg interfaces with domestic markets in several countries. As
a professional depositary, Clearstream Luxembourg is subject to regulation by
the Luxembourg Monetary Institute. Clearstream Luxembourg Participants are
recognized financial institutions around the world, including underwriters,
securities brokers and dealers, banks, trust companies, clearing corporations
and certain other organizations and may include the underwriters or their
affiliates. Indirect access to Clearstream Luxembourg is also available to
others, such as banks, brokers, dealers and trust companies that clear through,
or maintain a custodial relationship with, a Clearstream Luxembourg Participant
either directly or indirectly.

    Distributions with respect to each series of senior securities held
beneficially through Clearstream Luxembourg will be credited to cash accounts of
Clearstream Luxembourg Participants in accordance with its rules and procedures,
to the extent received by the U.S. Depositary for Clearstream Luxembourg.

    Euroclear has advised us that it was created in 1968 to hold securities for
participants of Euroclear ("Euroclear Participants") and to clear and settle
transactions between Euroclear Participants through simultaneous electronic
book-entry delivery against payment, thereby eliminating the need for physical
movement of certificates and any risk from lack of simultaneous transfers of
securities and cash. Euroclear includes various other services, including
securities lending and borrowing and interfaces with domestic markets in several
countries. Euroclear is operated by the Brussels, Belgium office of Morgan
Guaranty Trust Company of New York (the "Euroclear Operator"), under contract
with Euroclear Clearance Systems S.C., a Belgian cooperative corporation (the
"Cooperative"). All operations are conducted by the Euroclear Operator, and all
Euroclear securities clearance accounts and Euroclear cash accounts are accounts
with the Euroclear Operator, not the Cooperative. The Cooperative establishes
policy for Euroclear on behalf of Euroclear Participants. Euroclear Participants
include banks (including central banks), securities brokers and dealers and
other professional financial intermediaries and may include the underwriters or
their affiliates. Indirect access to Euroclear is also

                                      S-17
<PAGE>
available to other firms that clear through or maintain a custodial relationship
with a Euroclear Participant, either directly or indirectly.

    The Euroclear Operator is the Belgian branch of a New York banking
corporation, which is a member bank of the Federal Reserve System. As such, it
is regulated and examined by the Board of Governors of the Federal Reserve
System, the New York State Banking Department and the Belgian Banking
Commission.

    Securities clearance accounts and cash accounts with the Euroclear Operator
are governed by the Terms and Conditions Governing Use of Euroclear and the
related Operating Procedures of the Euroclear System, and applicable Belgian law
(the "Terms and Conditions"). The Terms and Conditions govern transfers of
securities and cash within Euroclear, withdrawals of securities and cash from
Euroclear, and receipts of payments with respect to securities in Euroclear. All
securities in Euroclear are held on a fungible basis without attribution of
specific certificates to specific securities clearance accounts. The Euroclear
Operator acts under the Terms and Conditions only on behalf of Euroclear
Participants, and has no record of, or relationship with, persons holding
through Euroclear Participants.

    Distributions with respect to each series of senior securities held
beneficially through Euroclear will be credited to the cash accounts of
Euroclear Participants in accordance with the Terms and Conditions, to the
extent received by the U.S. Depositary for Euroclear.

GLOBAL CLEARANCE AND SETTLEMENT PROCEDURES

    Initial settlement for each series of senior securities will be made in
immediately available funds. Secondary market trading between Depository
Participants will occur in the ordinary way in accordance with the Depository's
rules and will be settled in immediately available funds using the Depository's
Same-Day Funds Settlement System. Secondary market trading between Clearstream
Luxembourg Participants and Euroclear Participants will occur in the ordinary
way in accordance with the applicable rules and operating procedures of
Clearstream Luxembourg and Euroclear and will be settled using the procedures
applicable to conventional eurobonds in immediately available funds.

    Cross-market transfers between persons holding directly or indirectly
through the Depository on the one hand, and directly or indirectly through
Clearstream Luxembourg or Euroclear Participants, on the other, will be effected
within the Depository in accordance with the Depository's rules on behalf of the
relevant European international clearing system by its U.S. Depository; however,
such cross-market transactions will require delivery of instructions to the
relevant European international clearing system by the counterparty in such
system in accordance with its rules and procedures and within its established
deadlines (European time). The relevant European international clearing system
will, if the transaction meets its settlement requirements, deliver instructions
to its U.S. Depositary to take action to effect final settlement on its behalf
by delivering or receiving senior securities in the Depository, and making or
receiving payment in accordance with normal procedures for same-day funds
settlement applicable to the Depository. Clearstream Luxembourg Participants and
Euroclear Participants may not deliver instructions directly to their respective
U.S. Depositaries.

    Because of time-zone differences, credits of senior securities received in
Clearstream Luxembourg or Euroclear as a result of a transaction with a
Depository Participants will be made during subsequent securities settlement
processing and dated the business day following the Depository settlement date.
Such credits, or any transactions in the senior securities settled during such
processing, will be reported to the relevant Euroclear Participants or
Clearstream Luxembourg Participants on that business day. Cash received in
Clearstream Luxembourg or Euroclear as a result of sales of senior securities by
or through a Clearstream Luxembourg Participant or a Euroclear Participant to a
Depository Participant will be received with value on the business day of
settlement in the Depository but will be available in the relevant Clearstream
Luxembourg or Euroclear cash account only as of the business day following
settlement in the Depository.

                                      S-18
<PAGE>
    Although the Depository, Clearstream Luxembourg and Euroclear have agreed to
the foregoing procedures in order to facilitate transfers of securities among
participants of the Depository, Clearstream Luxembourg and Euroclear, they are
under no obligation to perform or continue to perform such procedures and they
may discontinue the procedures at any time.

APPLICATION OF DEFEASANCE PROVISION

    The accompanying prospectus contains a section entitled "Description of Debt
Securities--Defeasance and Covenant Defeasance." This section describes
provisions for the full defeasance and covenant defeasance of securities held
under the Senior Indenture. These provisions will apply to each series of senior
securities.

    To effect full defeasance or covenant defeasance of a series of senior
securities, we would be required to deliver to the Trustee an opinion of counsel
to the effect that the deposit of money or U.S. Government Obligations in the
trust created when we elect full defeasance or covenant defeasance will not
cause the Holders of the affected series of senior securities to recognize
income, gain or loss for federal income tax purposes.

     UNITED STATES FEDERAL TAX CONSIDERATIONS TO NON-UNITED STATES HOLDERS

    The following is a general discussion of certain United States federal
income and estate tax considerations relating to the ownership and disposition
of senior securities by a person that is not a United States person as defined
under the heading "Description of Senior Securities--Payment of Additional
Amounts" (a "Non-United States Holder"). This discussion is based on provisions
of the Internal Revenue Code of 1986, as amended (the "Code"), Treasury
regulations issued thereunder and interpretations thereof as of the date hereof,
all of which are subject to change. In addition, the discussion does not
consider specific facts and circumstances that may be relevant to a particular
Non-United States Holder's tax position. Accordingly, each Non-United States
Holder is urged to consult its own tax advisor with respect to the United States
tax consequences of the ownership and disposition of senior securities, as well
as any tax consequences that may arise under the laws of any state,
municipality, foreign country or other taxing jurisdiction.

    Under present U.S. federal income and estate tax law, and subject to the
discussion below concerning backup withholding:

    (1) no U.S. federal income or withholding tax will be imposed with respect
       to the payment by Viacom or the paying agent of principal or interest on
       a senior security owned by a Non-United States Holder, provided that, in
       the case of interest, (a) such Non-United States Holder does not actually
       or constructively own 10% or more of the total combined voting power of
       all classes of stock of Viacom entitled to vote within the meaning of
       section 871(h)(3) of the Code and the regulations thereunder, (b) such
       Non-United States Holder is not a controlled foreign corporation that is
       related, directly or indirectly, to Viacom through sufficient stock
       ownership, (c) such Non-United States Holder is not a bank whose receipt
       of interest on a note is described in section 881(c)(3)(A) of the Code,
       (d) such interest is not effectively connected with the conduct of a U.S.
       trade or business by such Non-United States Holder (or, if an income tax
       treaty applies, generally is not attributable to a U.S. "permanent
       establishment" maintained by such Non-United States Holder), and
       (e) such Non-United States Holder satisfies the certification requirement
       (described generally below) set forth in section 871(h) and
       section 881(c) of the Code and the regulations thereunder (the "Portfolio
       Interest Exception");

    (2) no U.S. federal income or withholding tax will be imposed with respect
       to any gain or income realized by a Non-United States Holder upon the
       sale, exchange, redemption, retirement or other disposition of a senior
       security (provided that, in the case of proceeds representing

                                      S-19
<PAGE>
       accrued interest, the requirements of the Portfolio Interest Exception
       described above are satisfied) unless (1) in the case of gain, such
       Non-United States Holder is an individual who is present in the United
       States for 183 days or more during the taxable year of the disposition
       and certain other conditions are met, or (2) such gain or income is
       effectively connected with the conduct of a U.S. trade or business by
       such Non-United States Holder (and, if an income tax treaty applies,
       generally is attributable to a U.S. "permanent establishment" maintained
       by such Non-United States Holder); and

    (3) a senior security beneficially owned by an individual, who is not a
       citizen of the United States and who at the time of death is a
       nonresident of the United States (as defined for U.S. estate tax
       purposes), will not be subject to United States federal estate tax as a
       result of such individual's death, provided that such individual does not
       actually or constructively own 10% or more of the total combined voting
       power of all classes of stock of Viacom entitled to vote within the
       meaning of section 871(h)(3) of the Code and provided that the interest
       payments with respect to such senior security would not have been, if
       received at the time of such individual's death, effectively connected
       with the conduct of a U.S. trade or business by such individual.

    To satisfy the certification requirement referred to above with respect to
the Portfolio Interest Exception, the beneficial owner of a senior security, or
a financial institution holding the senior security on behalf of such owner,
must provide the paying agent or Viacom, in accordance with specified
procedures, with a statement to the effect that the beneficial owner is not a
United States Holder. Pursuant to current U.S. Treasury regulations, a statement
will satisfy this certification requirement if (a) the beneficial owner provides
his/her name and address, and certifies, under penalties of perjury, that he/she
is not a United States Holder (which certification may be made on a IRS
Form W-8BEN), or (b) a financial institution holding the senior note on behalf
of the beneficial owner certifies, under penalties of perjury, that such
statement has been received by it and furnishes a copy thereof to a paying
agent.

    With respect to senior securities held by a foreign partnership, under
current U.S. federal income tax law, Form W-8IMY may be provided by the foreign
partnership. However, for interest and disposition proceeds paid with respect to
a senior security after December 31, 2000, unless the foreign partnership has
entered into a withholding agreement with the Internal Revenue Service ("IRS"),
a foreign partnership will be required, in addition to providing a Form W-8IMY,
to attach an appropriate certification by each partner. A look-through rule will
apply in the case of tiered partnerships. Prospective investors, including
foreign partnerships and their partners, should consult their tax advisors
regarding possible additional reporting requirements.

    If a Non-United States Holder cannot satisfy the requirements of the
Portfolio Interest Exception described above, interest payments on a senior
security, made to such Non-United States Holder, will be subject to a 30%
withholding tax unless the beneficial owner of the senior security provides to
the paying agent or Viacom a properly executed (a) Form W-8BEN claiming an
exemption from or a reduction of withholding tax under the benefit of an
applicable income tax treaty or (b) Form W-8ECI stating that interest paid on
the senior security is not subject to withholding tax because the interest
income is effectively connected with the beneficial owner's conduct of a trade
or business in the United States.

    Under the new U.S. Treasury regulations that generally will become effective
for payments made beginning January 1, 2001 (the "New Regulations"), the
certification requirement described above will be modified in certain respects.
In general, the New Regulations do not significantly alter the substantive
withholding and information reporting requirements but rather unify current
certification procedures and forms and clarify reliance standards. Non-United
States Holders should consult their own tax advisors to determine the effects of
the application of the New Regulations to their particular circumstances.

                                      S-20
<PAGE>
    If a Non-United States Holder is engaged in a trade or business in the
United States, and income derived by such Non-United States Holder in respect of
a senior security is effectively connected with the conduct of such trade or
business (and, if an income tax treaty applies, such income generally is
attributable to a U.S. permanent establishment maintained by the Non-United
States Holder), then the Non-United States Holder generally will be subject to
U.S. federal income tax on such income on a net basis in the same manner as a
United States Holder. In addition, if such Non-United States Holder is a foreign
corporation, it may be subject to a branch profits tax equal to 30% or
applicable lower income tax treaty rate on its effectively connected earnings
and profits for the taxable year subject to adjustments.

    No information reporting or backup withholding will be required with respect
to payments on a senior security and to the proceeds of the disposition of a
senior security made by Viacom or any paying agent to Non-United States Holders
if the certification requirement relating to the Portfolio Interest Exception
(as defined above) has been met and the payor does not have actual knowledge
that the beneficial owner is a U.S. person.

    In addition, backup withholding and information reporting generally will not
apply if a foreign office of a broker (as defined in applicable U.S. Treasury
regulations) pays the proceeds of the disposition of a senior security to the
owner thereof. If, however, such broker is, for U.S. federal income tax
purposes, (a) a U.S. person, (b) a controlled foreign corporation, (c) a foreign
person that derives 50% or more of its gross income for certain periods from the
conduct of a trade or business in the United States, or (d) with respect to
payments made beginning January 1, 2001, a foreign partnership if, at any time
during its tax year, one or more of its partners are U.S. persons who in the
aggregate hold more than 50% of the income or capital interest in the
partnership or if the partnership is engaged in a U.S. trade or business, then
such payments will be subject to information reporting (but, under current law,
not backup withholding), unless (i) such broker has documentary evidence in its
records that the beneficial owner is not a U.S. person and certain other
conditions are met, or (ii) the beneficial owner otherwise establishes an
exemption. Backup withholding may apply to payments made beginning January 1,
2001 which such broker is required to report if such broker has actual knowledge
that the beneficial owner is a U.S. person.

    Payments on a senior security paid to a Non-United States Holder by a U.S.
office of a custodian, nominee or agent, or the payment by the U.S. office of a
broker of the proceeds of disposition of a senior security, will be subject to
both backup withholding and information reporting unless the beneficial owner
provides the statement referred to above in connection with the certification
requirement for the Portfolio Interest Exception, and the payor does not have
actual knowledge that the beneficial owner is a U.S. person, or the beneficial
owner otherwise establishes an exemption.

    The New Regulations modify certain certification requirements for backup
withholding. Non-United States Holders should consult their own tax advisors to
determine the effects of the application of the New Regulations to their
particular circumstances.

    Any amounts withheld from payments to a holder under the backup withholding
rules will be credited toward such holder's U.S. federal income tax liability,
if any. To the extent that the amounts withheld exceed such tax liability, the
excess may be refunded to the holder provided that the required information is
furnished to the IRS. In addition to providing the necessary information, the
holder must file a U.S. income tax return in order to obtain a refund of the
excess withholding.

    The U.S. federal tax summary set forth above is included for general
information only and may not be applicable depending upon a holder's particular
situation. Prospective holders of senior securities are urged to consult their
own tax advisors with respect to the tax consequences to them of the
acquisition, ownership and disposition of senior securities, including the tax
consequences under U.S. federal, state, local, foreign and other tax laws and
the effects of changes in such laws.

                                      S-21
<PAGE>
                                  UNDERWRITING

    Subject to the terms and conditions set forth in an underwriting agreement
among Merrill Lynch, Pierce, Fenner & Smith Incorporated, Salomon Smith
Barney Inc., Banc of America Securities LLC, Chase Securities Inc., Deutsche
Bank Securities Inc., BNY Capital Markets, Inc. and FleetBoston Robertson
Stephens Inc., as underwriters, and us, dated July 25, 2000, we have agreed to
sell to the underwriters, and the underwriters have severally agreed to
purchase, the principal amount of each series of senior securities set forth
opposite their names below. Merrill Lynch, Pierce, Fenner & Smith Incorporated
and Salomon Smith Barney Inc. are acting as joint book-running managers. The
underwriting agreement provides that the obligations of the underwriters are
subject to certain conditions precedent and that when such conditions are
satisfied, the underwriters will be obligated to purchase all of each series of
the senior securities.

<TABLE>
<CAPTION>
                                              PRINCIPAL AMOUNT     PRINCIPAL AMOUNT
UNDERWRITER                                   OF SENIOR NOTES    OF SENIOR DEBENTURES
-----------                                   ----------------   --------------------
<S>                                           <C>                <C>
Merrill Lynch, Pierce, Fenner & Smith
          Incorporated......................   $  460,000,000        $200,000,000
Salomon Smith Barney Inc....................      460,000,000         200,000,000
Banc of America Securities LLC..............       63,250,000          27,500,000
Chase Securities Inc........................       63,250,000          27,500,000
Deutsche Bank Securities Inc................       63,250,000          27,500,000
BNY Capital Markets, Inc....................       20,125,000           8,750,000
FleetBoston Robertson Stephens Inc..........       20,125,000           8,750,000
                                               --------------        ------------
          Total.............................   $1,150,000,000        $500,000,000
                                               ==============        ============
</TABLE>

    The underwriters have advised us that they propose initially to offer the
applicable senior securities to the public at the public offering price set
forth on the cover page of this prospectus supplement and to certain dealers at
such prices less a concession not in excess of .30% of the principal amount of
the senior notes and not in excess of .50% of the principal amount of the senior
debentures. The underwriters may allow, and such dealers may reallow, a discount
not in excess of .125% of the principal amount of the senior notes and not in
excess of .25% of the principal amount of the senior debentures, to certain
other dealers. After the initial public offering, the underwriters may change
the public offering prices, concessions and discounts.

    The senior notes and senior debentures are new issues of securities, and,
although application has been made to list the senior securities on the
Luxembourg Stock Exchange, there is currently no established trading market for
the senior securities. The underwriters have advised us that they intend to make
a market in the senior securities, but they are not obligated to do so. The
underwriters may discontinue any market making in the senior securities at any
time without notice. We can give you no assurance as to the liquidity of, or any
trading market for, the senior securities.

    In connection with this offering, the underwriters are permitted to engage
in transactions that stabilize the market price of the senior securities. Such
transactions consist of bids or purchases to peg, fix or maintain the price of
the senior securities. If the underwriters create a short position in the senior
securities in connection with this offering by selling a greater aggregate
principal amount of either series of senior securities than is set forth on the
cover of this prospectus supplement, the underwriters may reduce that short
position by purchasing senior securities in the open market. Purchases of senior
securities for the purpose of stabilization or to reduce a short position could
cause the price of the security to be higher than it might be in the absence of
such purchases.

    Neither we nor any underwriter makes any representation or prediction as to
the direction or magnitude of any effect that the transactions described above
may have on the price of the senior securities. In addition, neither we nor any
underwriter makes any representation that the underwriters

                                      S-22
<PAGE>
will engage in these transactions or that these transactions, once commenced,
will not be discontinued at any time without notice.

    The underwriters are offering the senior securities, subject to prior sale,
when, as and if issued to and accepted by them, subject to approval of legal
matters by their counsel. The underwriters reserve the right to withdraw, cancel
or modify offers to the public and to reject orders in whole or in part.

    Each of the underwriters has represented and agreed that it has not and will
not offer, sell or deliver any of the senior securities directly or indirectly,
or distribute this prospectus supplement or the accompanying prospectus or any
other offering material relating to the senior securities, in or from any
jurisdiction except under circumstances that will result in compliance with the
applicable laws and regulations thereof and in a manner that will not impose any
obligations on Viacom except as set forth in the underwriting agreement.

    We have agreed to indemnify the underwriters against, or to contribute to
payments that the underwriters may be required to make in respect of, certain
liabilities, including liabilities under the Securities Act of 1933, as amended.

    It is expected that delivery of the senior securities will be made against
payment therefor on or about the date specified in the last paragraph of the
cover page of this prospectus supplement which will be the fifth business day
following the date of the pricing of the senior securities. Under Rule 15c6-1 of
the Securities Exchange Act of 1934, as amended, trades in the secondary market
generally are required to settle in three business days, unless the parties to
any such trade expressly agree otherwise. Accordingly, purchasers who wish to
trade senior securities on the date of pricing or the next succeeding business
day will be required, by virtue of the fact that the senior securities initially
will settle in five days, to specify alternative settlement arrangements to
prevent a failed settlement.

    Some of the underwriters and their affiliates have engaged in, and may in
the future engage in, investment banking and other commercial dealings in the
ordinary course of business with Viacom or its affiliates. They have received
customary fees and commissions for these transactions. William H. Gray, III, one
of our directors, is also a director of The Chase Manhattan Corporation and The
Chase Manhattan Bank, which are affiliates of Chase Securities Inc., one of the
underwriters.

    We expect to incur expenses of approximately $500,000, not including the
underwriting discount, in connection with this offering.

                      WHERE YOU CAN FIND MORE INFORMATION

    We file annual, quarterly and current reports, proxy statements and other
information with the SEC. You may read and copy any document we file at the
SEC's public reference rooms at 450 Fifth Street, N.W., Washington, D.C. 20549;
7 World Trade Center, Suite 1300, New York, New York 10048; and 500 West Madison
Street, Suite 1400, Chicago, Illinois 60661. Please call the SEC at
1-800-SEC-0330 for further information on the public reference rooms. Our SEC
filings are also available to the public from the SEC's web site at
http://www.sec.gov. Our Class A common stock and Class B common stock are listed
on the New York Stock Exchange. Information about us also is available at the
New York Stock Exchange. The SEC has granted Viacom International relief from
its obligations to file annual, quarterly and current reports, proxy statements
and other information with the SEC. Accordingly, Viacom International does not
file separate financial statements with the SEC.

    The SEC allows us to "incorporate by reference" the information we file with
them, which means that we can disclose important information to you by referring
you to those documents that are considered part of this prospectus supplement.
Later information that we file with the SEC will automatically update and
supersede this information. We incorporate by reference the documents listed
below and any future filings made with the SEC under Section 13(a), 13(c), 14 or
15(d) of the Securities Exchange Act of 1934 by us until our offering of
securities has been completed. This

                                      S-23
<PAGE>
prospectus supplement and the accompanying prospectus are part of a registration
statement filed with the SEC.

    - Our Registration Statement on Form S-4, dated November 24, 1999.

    - Our Annual Report on Form 10-K for the year ended December 31, 1999, as
      amended on April 28, 2000.

    - CBS Annual Report on Form 10-K for the year ended December 31, 1999, as
      amended on April 28, 2000.

    - Our Quarterly Report on Form 10-Q for the quarter ended March 31, 2000.

    - Our Current Report on Form 8-K dated May 4, 2000, as amended on July 17,
      2000.

    - Our definitive Proxy Statement dated June 5, 2000.

    You may obtain a copy of these filings at no cost, by writing or telephoning
us at the following address:

                                  Viacom Inc.
                                 1515 Broadway
                                   53rd Floor
                            New York, New York 10036
                            Attn: Investor Relations
                          Phone Number: (212) 258-6000

    In addition, copies of all documents that we incorporated into this
prospectus supplement by reference may be obtained free of charge at the offices
of Kriedetbank S.A. Luxembourgeoise, 43, Boulevard Royal, L-2955 Luxembourg, our
Luxembourg paying and transfer agent.

                                 LEGAL MATTERS

    The validity of the senior securities and the guarantee will be passed upon
for us and for Viacom International by Shearman & Sterling, New York, New York,
and for the underwriters by Hughes Hubbard & Reed LLP, New York, New York.
Hughes Hubbard & Reed LLP has from time to time performed legal services for
Viacom and Viacom International.

                                    EXPERTS

    The financial statements incorporated in this prospectus supplement by
reference from our Annual Report on Form 10-K for the year ended December 31,
1999, as amended on April 28, 2000, have been audited by PricewaterhouseCoopers
LLP, independent accountants, as stated in their report, which is incorporated
herein by reference, and have been so incorporated in reliance upon the report
of such firm given upon their authority as experts in accounting and auditing.

    The consolidated financial statements of CBS as of December 31, 1999 and
1998, and for each of the years in the three-year period ended December 31,
1999, incorporated in this prospectus supplement by reference from our Current
Report on Form 8-K dated May 4, 2000, as amended on July 17, 2000, have been
audited by KPMG LLP, independent auditors, as stated in their report, which is
incorporated herein by reference, and have been so incorporated in reliance upon
the report of such firm given upon their authority as experts in accounting and
auditing.

                                      S-24
<PAGE>
                              GENERAL INFORMATION

LISTING

    Application has been made to list the senior securities on the Luxembourg
Stock Exchange. Our Certificate of Incorporation and the legal notice relating
to the issue of the senior securities will be deposited prior to the listing
with the Registrar of the District Court in Luxembourg (GREFFIER EN CHEF DU
TRIBUNAL D'ARRONDISSEMENT A LUXEMBOURG), where such documents are available for
inspection and where copies may be obtained on request, free of charge. As long
as the senior securities are listed on the Luxembourg Stock Exchange, an agent
for making payments on, and transfers of, senior securities will be maintained
in Luxembourg.

MANAGEMENT OF VIACOM INC.

    Our corporate headquarters are located at 1515 Broadway, New York, New York
10036. The following people comprise the management of Viacom Inc.: Sumner M.
Redstone, Age 77, Chairman of Board of Directors and Chief Executive Officer;
Mel Karmazin, Age 56, President and Chief Operating Officer; Carl D. Folta, Age
42, Senior Vice President, Corporate Relations; Martin D. Franks, Age 49, Senior
Vice President; Robert G. Freedline, Age 42, Vice President and Treasurer;
Michael D. Fricklas, Age 40, Executive Vice President, General Counsel and
Secretary; Susan C. Gordon, Age 46, Vice President, Controller and Chief
Accounting Officer; Carol A. Melton, Age 45, Senior Vice President, Government
Affairs; Fredric G. Reynolds, Age 49, Executive Vice President and Chief
Financial Officer; William A. Roskin, Age 58, Senior Vice President, Human
Resources and Administration; and Martin M. Shea, Age 56, Senior Vice President,
Investor Relations.

CONSENTS

    We have obtained all material consents, approvals and authorizations in
connection with the issue of the senior securities. The issue of the senior
securities was authorized by resolutions of our Board of Directors passed on
March 31, 1994, as amended by resolutions of our Board of Directors passed on
July 17, 2000, and by resolutions of the Special Securities Committee of our
Board of Directors passed on July 25, 2000.

DOCUMENTS

    You may inspect copies of the following documents at the specified office of
the paying and transfer agent in Luxembourg.

    - our Certificate of Incorporation;

    - the underwriting agreement relating to the senior securities; and

    - the Senior Indenture (which includes a form of the senior note certificate
      and a form of the senior debenture certificate).

    In addition to information available as indicated under the section "Where
You Can Find More Information", copies of our most recent consolidated financial
statements for the preceding financial year, and any interim quarterly financial
statements published, will be available at the specified office of the paying
and transfer agent in Luxembourg for so long as the senior securities are listed
on the Luxembourg Stock Exchange. We publish only consolidated financial
statements.

                                      S-25
<PAGE>
CLEARING SYSTEMS

    The senior securities have been accepted for clearance through the
facilities of The Depository Trust Company, Clearstream Luxembourg and
Euroclear. Relevant trading information is set forth below.

<TABLE>
<CAPTION>
                                        ISIN         COMMON CODE      CUSIP
                                   ---------------   -----------   ------------
<S>                                <C>               <C>           <C>
Senior Notes.....................  US925524AJ95       11553257     925524AJ9
Senior Debentures................  US925524AH30       11553508     925524AH3
</TABLE>

NOTICES

    All notices will be deemed to have been given upon (i) the mailing by first
class mail, postage prepaid, of the notices to holders of the senior securities
at their registered addresses as recorded in the register; and (ii) so long as
the senior securities are listed on the Luxembourg Stock Exchange and it is
required by the rules of the Luxembourg Stock Exchange, publication of the
notice to the holders of the senior securities in English in a leading newspaper
having general circulation in Luxembourg (which is expected to be the LUXEMBOURG
WORT) or, if that publication is not practicable, in one other leading English
language daily newspaper with general circulation in Europe, that is published
each business day in morning editions, whether or not published in Saturday,
Sunday or holiday editions.

LITIGATION

    Except as disclosed in the prospectus supplement or as otherwise disclosed
in the materials incorporated by reference in this prospectus supplement, we are
not involved in any litigation or arbitration proceedings which would have a
material adverse effect on our financial condition after taking into account
applicable accounting and insurance coverage.

                                      S-26
<PAGE>
PROSPECTUS

                                 $3,000,000,000
                                ---------------

                                  VIACOM INC.

                             SENIOR DEBT SECURITIES
                      SENIOR SUBORDINATED DEBT SECURITIES
                          SUBORDINATED DEBT SECURITIES
                                PREFERRED STOCK
                            CONTINGENT VALUE RIGHTS
             UNCONDITIONALLY GUARANTEED AS TO PAYMENT OF PRINCIPAL,
        PREMIUM, IF ANY, AND INTEREST ON DEBT SECURITIES, TO THE EXTENT
             SET FORTH IN THE APPLICABLE PROSPECTUS SUPPLEMENT, BY

                           VIACOM INTERNATIONAL INC.
                   (A WHOLLY OWNED SUBSIDIARY OF VIACOM INC.)
                            ------------------------

    Viacom Inc. ("Viacom") may offer from time to time (i) its senior unsecured
debt securities (the "Senior Debt Securities"); (ii) its senior subordinated
unsecured debt securities (the "Senior Subordinated Debt Securities");
(iii) its subordinated unsecured debt securities (the "Subordinated Debt
Securities" and, together with the Senior Debt Securities and Senior
Subordinated Debt Securities, the "Debt Securities"); (iv) shares of its
preferred stock (the "Preferred Stock"); and (v) its contingent value rights
("CVRs"), representing the right to receive (under certain circumstances) cash
or securities of Viacom depending on market prices of Viacom's Class B Common
Stock, par value $.01 per share ("Class B Common Stock"), during certain
specified periods; in one or more series, or any combination of the foregoing.
The aggregate gross proceeds from the offer, sale and distribution of Debt
Securities, Preferred Stock and CVRs hereunder will not exceed $3.0 billion.

    The Senior Subordinated Debt Securities will be subordinated in right of
payment to all existing and future Senior Obligations of Viacom, and the
Subordinated Debt Securities will be subordinate in right of payment to all
existing and future Senior and Senior Subordinated Obligations of Viacom. See
"Description of Senior Subordinated Debt Securities--Subordination",
"Description of Subordinated Debt Securities--Subordination" and "Description of
Debt Securities--Certain Definitions" for the definition of "Senior Obligations"
and "Senior and Senior Subordinated Obligations". The Senior Debt Securities,
the Senior Subordinated Debt Securities and the Subordinated Debt Securities
will be unconditionally guaranteed (the "Guarantees") as to the payment of
principal, premium, if any, and interest, to the extent set forth in the
applicable Prospectus Supplement (as defined below), by Viacom
International Inc. ("Viacom International") on a senior basis, a senior
subordinated basis and a subordinated basis, respectively.

    Specific terms of the securities in respect of which this Prospectus is
being delivered ("Offered Securities") will be set forth in one or more
supplements to this Prospectus (each a "Prospectus Supplement"), together with
the terms of the offering of the Offered Securities, the initial price thereof
and the net proceeds from the sale thereof. Debt Securities may be issued as
Original Issue Discount Debt Securities (as defined in "Description of Debt
Securities--General") to be sold at a substantial discount below their principal
amount and, if issued, certain terms thereof will be set forth in the Prospectus
Supplement related thereto.
                            ------------------------

    FOR INFORMATION CONCERNING CERTAIN FACTORS THAT SHOULD BE CONSIDERED BY
PROSPECTIVE INVESTORS, SEE "CERTAIN CONSIDERATIONS".

THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
    EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE
       COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
           ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY
              REPRESENTATION TO THE CONTRARY IS A CRIMINAL
                                    OFFENSE.
                            ------------------------

    Viacom may sell the Offered Securities to or through underwriters and may
also sell the Offered Securities directly to one or more other purchasers or
through dealers or agents. Viacom may also distribute the Offered Securities
directly to certain of its security holders in satisfaction of its obligations
in respect of the outstanding securities held by such security holders. See
"Plan of Distribution". The names of any underwriters, dealers or agents
involved in the sale of the Offered Securities and any applicable commission or
discount arrangements with them will be set forth in an accompanying Prospectus
Supplement.

    This Prospectus may not be used to consummate sales of Offered Securities
unless accompanied by a Prospectus Supplement.
                            ------------------------

                  THE DATE OF THIS PROSPECTUS IS MAY 10, 1995.
<PAGE>
    NO DEALER, SALESMAN OR OTHER PERSON HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATION NOT CONTAINED OR INCORPORATED BY
REFERENCE IN THIS PROSPECTUS OR ANY ACCOMPANYING PROSPECTUS SUPPLEMENT AND, IF
GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATION MUST NOT BE RELIED UPON AS
HAVING BEEN AUTHORIZED BY VIACOM OR VIACOM INTERNATIONAL, OR ANY UNDERWRITER,
DEALER OR AGENT. NEITHER THIS PROSPECTUS NOR ANY ACCOMPANYING PROSPECTUS
SUPPLEMENT CONSTITUTES AN OFFER TO SELL OR A SOLICITATION OF ANY OFFER TO BUY
ANY OF THE SECURITIES HEREBY OR THEREBY OFFERED IN ANY JURISDICTION TO ANY
PERSON TO WHOM IT IS UNLAWFUL TO MAKE SUCH OFFER OR SOLICITATION IN SUCH
JURISDICTION. NEITHER THE DELIVERY OF THIS PROSPECTUS OR ANY ACCOMPANYING
PROSPECTUS SUPPLEMENT NOR ANY SALE MADE HEREUNDER OR THEREUNDER SHALL, UNDER ANY
CIRCUMSTANCES, CREATE ANY IMPLICATION THAT THE INFORMATION HEREIN OR THEREIN IS
CORRECT AS OF ANY TIME SUBSEQUENT TO THE DATE HEREOF OR THEREOF OR THAT THERE
HAS BEEN NO CHANGE IN THE AFFAIRS OF VIACOM OR VIACOM INTERNATIONAL SINCE SUCH
DATE OR, IN THE CASE OF INFORMATION INCORPORATED HEREIN OR THEREIN BY REFERENCE,
THE DATE OF FILING WITH THE SECURITIES AND EXCHANGE COMMISSION.

                             AVAILABLE INFORMATION

    Viacom is currently subject to the informational requirements of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), and, in
accordance therewith, files reports, proxy statements and other information with
the Securities and Exchange Commission (the "Commission"). The reports, proxy
statements and other information filed by Viacom with the Commission can be
inspected and copied at the public reference facilities maintained by the
Commission at Room 1024, Judiciary Plaza, 450 Fifth Street, N.W., Washington,
D.C. 20549 and should be available at the Commission's Regional Offices at Seven
World Trade Center, 13th Floor, New York, New York 10048 and Citicorp Center,
500 West Madison Street, Suite 1400, Chicago, Illinois 60661-2511. Copies of
such material also can be obtained from the Public Reference Section of the
Commission at Judiciary Plaza, 450 Fifth Street, N.W., Washington, D.C. 20549,
at prescribed rates. In addition, material filed by Viacom can be inspected at
the offices of the American Stock Exchange, Inc. (the "AMEX"), 86 Trinity Place,
New York, New York 10006. As of March 1, 1995, Viacom International is no longer
required to file reports, proxy statements or other information with the
Commission pursuant to the requirements of the Exchange Act. Instead,
information with respect to Viacom International is provided, to the extent
required, in filings made by Viacom.

    This Prospectus constitutes part of a registration statement (the
"Registration Statement") filed by Viacom and Viacom International with the
Commission under the Securities Act of 1933, as amended (the "Securities Act").
As permitted by the rules and regulations of the Commission, this Prospectus
omits certain of the information contained in the Registration Statement. For
further information with respect to Viacom and Viacom International and the
Offered Securities, reference is hereby made to the Registration Statement and
to the exhibits thereto. Copies of the Registration Statement and the exhibits
thereto are on file at the offices of the Commission and may be obtained upon
payment of the fee prescribed by the Commission, or may be examined without
charge at the public reference facilities of the Commission described above.
Statements contained herein concerning the provisions of documents are
necessarily summaries of such documents, and each statement is qualified in its
entirety by reference to the copy of the applicable document filed with the
Commission, copies of which may be obtained as provided in the preceding
paragraph.

                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

    The following documents filed with the Commission by Viacom (File
No. 1-9553) and Viacom International (File No. 1-9554) pursuant to the Exchange
Act are incorporated by reference in this Prospectus:

    1. Viacom's Annual Report on Form 10-K for the year ended December 31, 1994;

    2. Viacom's Current Reports on Form 8-K filed January 24, 1995, March 15,
1995, April 14, 1995 and May 8, 1995;

                                       2
<PAGE>
    3. Item 8 of Viacom International's Annual Report on Form 10-K for the year
ended December 31, 1993, as amended by Form 10-K/A Amendment No. 1 dated May 2,
1994; and

    4. Viacom International's Current Report on Form 8-K filed January 4, 1995.

    All documents and reports filed by Viacom (or, to the extent applicable,
Viacom International), if any, pursuant to Section 13(a), 13(c), 14 or 15(d) of
the Exchange Act after the date of this Prospectus and prior to the termination
of the offering of the Offered Securities shall be deemed to be incorporated by
reference in this Prospectus and to be a part of this Prospectus from the dates
of filing of such documents or reports. Any statement contained herein or in a
document incorporated or deemed to be incorporated by reference herein shall be
deemed to be modified or superseded for purposes of this Prospectus to the
extent that a statement contained herein (or in any accompanying Prospectus
Supplement) or in any other subsequently filed document which also is or is
deemed to be incorporated by reference herein modifies or supersedes such
statement. Any such statement so modified or superseded shall not be deemed,
except as so modified and superseded, to constitute a part of this Prospectus.

    This Prospectus incorporates documents by reference, which are not presented
herein or delivered herewith. Such documents (other than exhibits to such
documents unless such exhibits are specifically incorporated by reference) are
available, without charge, to any person, including any beneficial owner, to
whom a copy of this Prospectus is delivered, upon written or oral request to
Viacom Inc., 1515 Broadway, New York, New York 10036, Attention: John H. Burke
(telephone number (212) 258-6000).

                                  THE COMPANY

    Viacom Inc. (together with its subsidiaries and divisions, unless the
context otherwise requires, the "Company") is a diversified entertainment and
publishing company with operations in five segments: (i) Networks and
Broadcasting, (ii) Entertainment, (iii) Video and Music/Theme Parks,
(iv) Publishing, and (v) Cable Television. Through the Networks and Broadcasting
segment, the Company operates MTV: MUSIC TELEVISION-Registered Trademark-,
SHOWTIME-Registered Trademark-, NICKELODEON-Registered Trademark- / NICK AT
NITE-Registered Trademark- and VH1 MUSIC FIRST-TM-, among other program
services, and 12 broadcast television and 12 radio stations. Through the
Entertainment segment, which includes PARAMOUNT PICTURES-TM- and the Company's
approximately 77%-owned subsidiary Spelling Entertainment Group Inc., the
Company produces and distributes theatrical motion pictures and television
programming. Through the Video and Music/Theme Parks segment, which includes the
BLOCKBUSTER-Registered Trademark- family of businesses and PARAMOUNT PARKS-TM-,
the Company is the leading worldwide owner, operator and franchisor of
videocassette rental and sales stores and a leading owner and operator of music
stores in the U.S. In addition, PARAMOUNT PARKS-TM- owns and operates five theme
parks located in the U.S. and Canada. Through the Publishing segment, which
includes SIMON & SCHUSTER-Registered Trademark-, MACMILLAN PUBLISHING USA-TM-
and PRENTICE HALL-Registered Trademark-, the Company publishes and distributes
educational, consumer, business, technical and professional books, and audio-
video software products. Through the Cable Television segment, the Company
operates cable television systems serving approximately 1.1 million customers.
The Company's principal offices are located at 1515 Broadway, New York, New York
10036 and its telephone number is (212) 258-6000.

                             CERTAIN CONSIDERATIONS

    PROSPECTIVE PURCHASERS OF THE OFFERED SECURITIES SHOULD CONSIDER CAREFULLY
ALL OF THE INFORMATION SET FORTH OR INCORPORATED IN THIS PROSPECTUS AND ANY
ACCOMPANYING PROSPECTUS SUPPLEMENT AND, IN PARTICULAR, THE FOLLOWING:

TOTAL INDEBTEDNESS

    As of December 31, 1994, Viacom had outstanding total indebtedness of
approximately $10.4 billion and 5% preferred stock with a liquidation preference
of $1.2 billion. The Company's scheduled maturities of long-term debt, through
December 31, 1999 assuming full utilization of the outstanding credit agreements
(after giving effect to the reduction in commitments resulting from the sale of
Madison Square

                                       3
<PAGE>
Garden), are $1.9 billion (1996), $163 million (1997), $1.0 billion (1998) and
$1.5 billion (1999). The Company's preferred stock dividend requirement is
$60 million per year.

FRAUDULENT CONVEYANCE CONSIDERATIONS

    Viacom's obligations under the Debt Securities will be guaranteed to the
extent set forth herein and in the applicable Prospectus Supplement by Viacom
International. See "Description of Senior Debt Securities--Guarantees",
"Description of Senior Subordinated Debt Securities--Senior Subordinated
Guarantees" and "Description of Subordinated Debt Securities--Subordinated
Guarantees". Various federal and state fraudulent conveyance laws have been
enacted for the protection of creditors and may be utilized by a court of
competent jurisdiction to subordinate or avoid all or part of any Guarantee
issued by Viacom International.

    To the extent that a court were to find that (x) a Guarantee was incurred by
Viacom International with intent to hinder, delay or defraud any present or
future creditor or (y) Viacom International did not receive fair consideration
or reasonably equivalent value for issuing its Guarantee and Viacom
International (i) was insolvent or rendered insolvent by reason of the issuance
of the Guarantee, (ii) was engaged or about to engage in a business or
transaction for which the remaining assets of Viacom International constituted
unreasonably small capital to carry on its business or (iii) intended to incur,
or believed that it would incur, debts beyond its ability to pay such debts as
they matured, the court could subordinate or avoid all or part of such Guarantee
in favor of Viacom International's other creditors. To the extent any Guarantee
issued by Viacom International was avoided as a fraudulent conveyance or held
unenforceable for any other reason, the holders of Debt Securities guaranteed by
Viacom International would cease to have any claim against Viacom International
and would be creditors solely of Viacom.

    Viacom and Viacom International believe that the issuances of the Guarantees
by Viacom International are not fraudulent conveyances. There can be no
assurance, however, that a court passing on such questions would reach the same
conclusions. In rendering their opinions on the validity of the Offered
Securities and, if applicable, the related Guarantees, neither counsel for
Viacom and Viacom International nor counsel for the underwriters will express
any opinion as to federal or state laws relating to fraudulent transfers.

                                USE OF PROCEEDS

    The net proceeds from the sale of the Offered Securities may be used by
Viacom to repay, redeem, repurchase or satisfy its obligations in respect of its
outstanding indebtedness or other securities; to make loans to its subsidiaries;
for general corporate purposes; or for such other purposes as may be specified
in the applicable Prospectus Supplement. Viacom also may distribute the Offered
Securities directly to certain of its security holders in satisfaction of its
obligations in respect of the outstanding securities held by such security
holders. A description of any indebtedness to be refinanced or obligations, in
respect of securities, to be satisfied with Offered Securities or the proceeds
of the Offered Securities will be set forth in the applicable Prospectus
Supplement.

                     RATIO OF EARNINGS TO FIXED CHARGES AND
                  RATIO OF EARNINGS TO COMBINED FIXED CHARGES
                         AND PREFERRED STOCK DIVIDENDS

    The following table sets forth (i) the ratio of earnings to fixed charges
for the Company for each year in the five-year period ended December 31, 1994
and (ii) the ratio of earnings to combined fixed charges and preferred stock
dividends for the Company for each applicable year in the five-year period ended
December 31, 1994. For purposes of computing the following ratios, earnings
represent income from operations before fixed charges and taxes, and fixed
charges represent interest on indebtedness, amortization of debt discount and
such portion of rental expense which is deemed to be representative of the

                                       4
<PAGE>
interest factor. The ratios set forth below should be read in conjunction with
the financial statements of the Company incorporated by reference into this
Prospectus.

<TABLE>
<CAPTION>
                                                                            YEAR ENDED DECEMBER 31,
                                                              ----------------------------------------------------
                                                                1994       1993       1992       1991       1990
                                                              --------   --------   --------   --------   --------
<S>                                                           <C>        <C>        <C>        <C>        <C>
Ratio of Earnings to Fixed Charges..........................    1.7x       2.8x       1.8x       1.0x        (a)
Ratio of Earnings to Combined Fixed Charges
  and Preferred Stock Dividends.............................    1.1x       2.5x         (b)        (b)       (b)
</TABLE>

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

(a) Earnings of the Company were insufficient to cover fixed charges for the
    year ended December 31, 1990. The additional amount of earnings required to
    cover fixed charges of the Company for the year ended December 31, 1990
    would have been $66.2 million.

(b) The Company did not have any preferred stock outstanding from 1990 to
    October 1993.

                                       5
<PAGE>
                         DESCRIPTION OF DEBT SECURITIES

    THE FOLLOWING STATEMENTS RELATING TO THE DEBT SECURITIES AND THE INDENTURES
(AS DEFINED BELOW) ARE SUMMARIES AND DO NOT PURPORT TO BE COMPLETE. SUCH
SUMMARIES MAY MAKE USE OF CERTAIN TERMS DEFINED IN THE INDENTURES AND ARE
QUALIFIED IN THEIR ENTIRETY BY EXPRESS REFERENCE TO SUCH INDENTURES. IN
ADDITION, CERTAIN DEFINED TERMS, INCLUDING "CREDIT AGREEMENT", USED IN THIS
SECTION AND UNDER "DESCRIPTION OF SENIOR DEBT SECURITIES", "DESCRIPTION OF
SENIOR SUBORDINATED DEBT SECURITIES" AND "DESCRIPTION OF SUBORDINATED DEBT
SECURITIES" ARE SET FORTH BELOW UNDER "--CERTAIN DEFINITIONS". CAPITALIZED TERMS
NOT OTHERWISE DEFINED BELOW OR ELSEWHERE IN THIS PROSPECTUS HAVE THE MEANINGS
GIVEN TO THEM IN THE APPLICABLE INDENTURE.

    EXCEPT AS OTHERWISE NOTED, THE FOLLOWING TERMS AND CONDITIONS APPLY TO THE
SENIOR DEBT SECURITIES, THE SENIOR SUBORDINATED DEBT SECURITIES AND THE
SUBORDINATED DEBT SECURITIES. FOR TERMS AND CONDITIONS APPLICABLE SOLELY TO
SENIOR DEBT SECURITIES, SEE "DESCRIPTION OF SENIOR DEBT SECURITIES". FOR TERMS
AND CONDITIONS APPLICABLE SOLELY TO SENIOR SUBORDINATED DEBT SECURITIES, SEE
"DESCRIPTION OF SENIOR SUBORDINATED DEBT SECURITIES". FOR TERMS AND CONDITIONS
APPLICABLE SOLELY TO SUBORDINATED DEBT SECURITIES, SEE "DESCRIPTION OF
SUBORDINATED DEBT SECURITIES".

GENERAL

    The Debt Securities will represent unsecured general obligations of Viacom.
The Senior Debt Securities will rank PARI PASSU with other unsecured
unsubordinated obligations of Viacom. The Senior Subordinated Debt Securities
will be subordinated and subject in right of payment to the prior payment in
full of all Senior Obligations of Viacom. See "--Certain Definitions" below. The
Subordinated Debt Securities will be subordinated and subject in right of
payment to the prior payment in full of all Senior and Senior Subordinated
Obligations of Viacom. See "--Certain Definitions" below.

    The Senior Debt Securities will be issued under an Indenture to be executed
by Viacom, Viacom International, as guarantor, and The First National Bank of
Boston, trustee (the "Senior Indenture"), the Senior Subordinated Debt
Securities will be issued under an Indenture to be executed by Viacom, Viacom
International, as guarantor, and The First National Bank of Boston, trustee (the
"Senior Subordinated Indenture"), and the Subordinated Debt Securities will be
issued under an Indenture to be executed by Viacom, Viacom International, as
guarantor, and The First National Bank of Boston, trustee (the "Subordinated
Indenture"). In this Prospectus, the Senior Indenture, the Senior Subordinated
Indenture and the Subordinated Indenture are sometimes collectively referred to
as the "Indentures" and individually as an "Indenture", and the trustees under
the Senior Indenture, the Senior Subordinated Indenture and the Subordinated
Indenture are sometimes collectively referred to as the "Trustees" and
individually as a "Trustee". Copies of the Indentures have been filed as
exhibits to the Registration Statement of which this Prospectus is a part.
Section references used in this Prospectus refer to the sections of all of the
Indentures unless otherwise indicated.

    The Indentures will provide that Debt Securities may be issued in separate
series thereunder without limitation as to aggregate principal amount. The terms
of each series of Debt Securities will be established by or pursuant to a
resolution of the Board of Directors of Viacom and set forth or determined in
the manner provided in an Officer's Certificate or by a supplemental indenture.
(Section 301) The Prospectus Supplement applicable to any particular series of
Debt Securities will describe the particular terms of the Debt Securities of
such series.

    Debt Securities may be issued as Original Issue Discount Debt Securities. An
"Original Issue Discount Debt Security" is a Debt Security, including any
zero-coupon Debt Security, which is issued at a price lower than the amount
payable upon the Stated Maturity thereof, and which provides that, upon
redemption or acceleration of the Maturity thereof, an amount less than the
amount payable upon the Stated Maturity thereof and determined in accordance
with the terms of such Debt Security shall become due and payable. Special
United States federal income tax considerations applicable to Original Issue
Discount Debt Securities will be described in the Prospectus Supplement relating
thereto.

                                       6
<PAGE>
FORM, EXCHANGE, REGISTRATION AND TRANSFER

    Debt Securities of a series may be issuable solely as Registered Securities,
solely as Bearer Securities or as both Registered Securities and Bearer
Securities. Registered Securities will be issuable in denominations of $1,000
and integral multiples of $1,000 and Bearer Securities will be issuable in
denominations of $5,000 or, in each case, in such other denominations as may be
in the terms of the Debt Securities of any particular series. The Indentures
also provide that Debt Securities of a series may be issuable in global form.
Unless otherwise indicated in the applicable Prospectus Supplement, Bearer
Securities will have interest coupons attached. (Sections 201 and 301)

    Registered Securities of any series will be exchangeable for other
Registered Securities of the same series and of a like aggregate principal
amount and tenor of different authorized denominations. If (but only if)
provided in the relevant Prospectus Supplement, Bearer Securities (with all
unmatured coupons, except as provided below, and all matured coupons in default)
of any series may be exchanged for Registered Securities of the same series of
any authorized denominations and of a like aggregate principal amount and tenor.
In such event, Bearer Securities surrendered in a permitted exchange for
Registered Securities between a Regular Record Date or a Special Record Date and
the relevant date for payment of interest shall be surrendered without the
coupon relating to such date for payment of interest, and interest will not be
payable on such date for payment of interest in respect of the Registered
Security issued in exchange for such Bearer Security, but will be payable only
to the Holder of such coupon when due in accordance with the terms of the
Indentures. (Section 305)

    The Debt Securities may be presented for exchange as described above, and
Registered Securities may be presented for registration of transfer (duly
endorsed or accompanied by a written instrument of transfer), at the office of
the Security Registrar or at the office of any transfer agent designated by
Viacom for such purpose with respect to any series of Debt Securities and
referred to in an applicable Prospectus Supplement. No service charge will be
made for any transfer or exchange of Debt Securities, but Viacom may require
payment of a sum sufficient to cover any tax or other governmental charge
payable in connection therewith. Viacom has appointed the Trustees as Security
Registrars. (Section 305) If a Prospectus Supplement refers to any transfer
agent (in addition to the Security Registrars) initially designated by Viacom
with respect to any series of Debt Securities, Viacom may at any time rescind
the designation of any such transfer agent or approve a change in the location
through which any such transfer agent acts, except that, if Debt Securities of a
series are issuable solely as Registered Securities, Viacom will be required to
maintain a transfer agent in each Place of Payment for such series and, if Debt
Securities of a series may be issuable both as Registered Securities and as
Bearer Securities, Viacom will be required to maintain (in addition to the
Security Registrars) a transfer agent in a Place of Payment for such series
located outside the United States. Viacom may at any time designate additional
transfer agents with respect to any series of Debt Securities. (Section 1002)

    In the event of any redemption in part, Viacom shall not be required to
(i) issue, register the transfer of or exchange any Debt Securities of any
series during a period beginning at the opening of business 15 days before any
selection of Debt Securities of that series to be redeemed and ending at the
close of business on (A) if Debt Securities of the series are issuable only as
Registered Securities, the day of mailing of the relevant notice of redemption
and (B) if Debt Securities of the series are issuable as Bearer Securities, the
day of the first publication of the relevant notice of redemption or, if Debt
Securities of the series are also issuable as Registered Securities and there is
no publication, the mailing of the relevant notice of redemption; (ii) register
the transfer of or exchange any Registered Security, or portion thereof, called
for redemption, except the unredeemed portion of any Registered Security being
redeemed in part; (iii) exchange any Bearer Security selected for redemption,
except to exchange such Bearer Security for a Registered Security of that series
and like tenor which is simultaneously surrendered for redemption; or
(iv) issue, register the transfer of or exchange any Debt Security which has
been surrendered for repayment at the option of the Holder, except the portion,
if any, thereof not to be so repaid. (Section 305)

                                       7
<PAGE>
REGISTERED GLOBAL SECURITIES

    If provided in the applicable Prospectus Supplement for a series of Debt
Securities, then the Debt Securities of such series initially will be issued in
the form of one or more fully registered global certificates (a "Registered
Global Security") that will be deposited with a depository (referred to in this
section as the "Depository"), and registered in the name of a nominee for the
Depository identified in the Prospectus Supplement relating to such series. In
such cases, one or more Registered Global Securities will be issued in a
denomination or aggregate denominations equal to the portion of the aggregate
principal amount of outstanding registered Debt Securities of the series to be
represented by such Registered Global Security or Securities. Unless and until
it is exchanged in whole or in part for Debt Securities in definitive registered
form, a Registered Global Security may not be transferred except as a whole by
the Depository for such Registered Global Security to another nominee of such
Depository or to a successor of the Depository or its nominee.

    The specific terms of the depository arrangement with respect to any portion
of a series of Debt Securities to be represented by a Registered Global Security
will be described in the Prospectus Supplement relating to such series. Viacom
anticipates that the following provisions will apply to all depository
arrangements.

    Upon the issuance of a Registered Global Security by Viacom, the Depository
for such Registered Global Security will credit, on its book-entry registration
and transfer system, the respective principal amounts of the Debt Securities
represented by such Registered Global Security to the accounts of persons that
have accounts with such Depository ("participants"). The accounts to be credited
shall be designated by any underwriters or agents participating in the
distribution of such Debt Securities or by Viacom if such Debt Securities are
offered and sold directly by Viacom. Ownership of beneficial interests in a
Registered Global Security will be limited to participants or persons that may
hold interests through participants. Ownership of beneficial interests in such
Registered Global Security will be shown on, and the transfer of that ownership
will be effected only through, records maintained by the Depository for such
Registered Global Security (with respect to interests of participants) or by
participants or persons that hold through participants (with respect to
interests of persons other than participants). The laws of some states require
that certain purchasers of securities take physical delivery in definitive form
of securities they own. Such limits and such laws may impair the ability to
transfer beneficial interests in a Registered Global Security.

    So long as the Depository for a Registered Global Security, or its nominee,
is the registered owner of such Registered Global Security, such Depository or
such nominee, as the case may be, will be considered the sole owner or holder of
the Debt Securities represented by such Registered Global Security for all
purposes under the respective Indenture. Except as set forth below, owners of
beneficial interests in a Registered Global Security will not be entitled to
have the Debt Securities represented by such Registered Global Security
registered in their names, will not receive or be entitled to receive physical
delivery of such Debt Securities in definitive form and will not be considered
the owners or holders thereof under the respective Indenture.

    None of Viacom, Viacom International, as guarantor, the Trustee under the
respective Indenture, any Paying Agent or any Security Registrar for such Debt
Securities will have any responsibility or liability for any aspect of the
records relating to or payments made on account of beneficial ownership
interests in such Registered Global Security or for maintaining, supervising or
reviewing any records relating to such beneficial ownership interests.

    Principal, premium, if any, and interest payments on Debt Securities
represented by a Registered Global Security registered in the name of a
Depository or its nominee will be made by the Trustee to such Depository or its
nominee, as the case may be, as the registered owner of such Debt Securities.
Under the terms of the Indentures, Viacom, Viacom International, as guarantor,
and the Trustee will treat the persons in whose names Debt Securities are
registered as the owners of such Debt Securities for the purpose of receiving
payment of principal, premium, if any, and interest on such Debt Securities and
for all

                                       8
<PAGE>
other purposes whatsoever. Viacom expects that the Depository for any Debt
Securities represented by a Registered Global Security, upon receipt of any
payment of principal, premium or interest, will immediately credit participants'
accounts with such payments in amounts proportionate to their respective
beneficial interests in the principal amount of such Registered Global Security
as shown on the records of such Depository. Viacom also expects that payments by
participants and indirect participants to owners of beneficial interests in such
Registered Global Security or Securities will be governed by standing
instructions and customary practices, as is now the case with the securities
held for the accounts of customers in bearer form or registered in "street
name", and will be the responsibility of such participants or indirect
participants.

    If the Depository for any Debt Securities represented by a Registered Global
Security is at any time unwilling or unable to continue as Depository and a
successor Depository is not appointed by Viacom within 90 days, then Viacom will
issue Debt Securities of such series in definitive form in exchange for the
Registered Global Security evidencing such series. In addition, Viacom may at
any time and in its sole discretion determine not to have the Debt Securities of
a series represented by a Registered Global Security and, in such event, will
issue Debt Securities of such series in definitive form in exchange for the
Registered Global Securities or Securities representing such Debt Securities. In
either instance, an owner of a beneficial interest in such a Registered Global
Security will be entitled to have Debt Securities of such series equal in
principal amount to such beneficial interest registered in its name and will be
entitled to physical delivery of Debt Securities of such series in definitive
form. Debt Securities so issued in definitive form will, except as set forth in
the applicable Prospectus Supplement, be issued in denominations of $1,000 and
integral multiples of $1,000 in excess thereof and will be issued in registered
form only, without coupons. Further, if Viacom so specifies in the Prospectus
Supplement with respect to the Debt Securities of a series, an owner of a
beneficial interest in a Registered Global Security representing such Debt
Securities may, on terms acceptable to Viacom and the Depository for such
Registered Global Securities, receive such Debt Securities in definitive form.

PAYMENT AND PAYING AGENTS

    Unless otherwise indicated in an applicable Prospectus Supplement, principal
of, premium, if any, and interest on Registered Securities will be payable,
subject to any applicable laws and regulations, at the office of such Paying
Agent or Paying Agents as Viacom may designate from time to time, except that at
the option of Viacom payment of any interest may be made by check mailed to the
address of the Person entitled thereto as such address shall appear in the
Security Register. (Sections 301, 307, 1002) Unless otherwise indicated in an
applicable Prospectus Supplement, payment of interest on a Registered Security
on any Interest Payment Date will be made to the Person in whose name such Debt
Security (or Predecessor Debt Security) is registered at the close of business
on the Regular Record Date for such interest. (Section 307)

    Unless otherwise indicated in an applicable Prospectus Supplement, payment
of principal of, premium, if any, and interest, if any, on Bearer Securities
will be made, subject to any applicable laws and regulations, at such office
outside the United States as specified in the applicable Prospectus Supplement
and as Viacom may designate from time to time or by transfer to an account
maintained by the payee with a bank located outside the United States. Unless
otherwise indicated in an applicable Prospectus Supplement, payment of interest
on Bearer Securities will be made only against surrender of the coupon relating
to such Interest Payment Date. No payment with respect to any Bearer Security
will be made at any office or agency of Viacom in the United States or by check
mailed to any address in the United States or by transfer to an account
maintained with a bank located in the United States. (Sections 301, 307, 1001)

    Unless otherwise indicated in an applicable Prospectus Supplement, the
Corporate Trust Office of the Trustee will be designated as a Paying Agent for
Viacom for payments with respect to the Debt Securities of each series. Any
Paying Agents initially designated by Viacom for the Debt Securities of each
series will be named in an applicable Prospectus Supplement. Viacom may at any
time designate additional Paying

                                       9
<PAGE>
Agents or rescind the designation of any Paying Agent or approve a change in the
office through which any Paying Agent acts, except that Viacom will be required
to maintain a Paying Agent in each Place of Payment for such series.

    All moneys paid by Viacom or Viacom International, as guarantor, to a Paying
Agent for the payment of the principal of, premium, if any, or interest on any
Debt Security of any series that remain unclaimed at the end of two years after
such principal, premium or interest shall have become due and payable will be
repaid to Viacom or Viacom International, as guarantor, as the case may be, and
the Holder of such Debt Security will thereafter look only to Viacom and Viacom
International for payment thereof. (Section 1003)

DEFAULTS AND REMEDIES

    The following are Events of Default with respect to a series of Debt
Securities under each Indenture, unless otherwise indicated in an applicable
Prospectus Supplement and except as noted below: (1) default in the payment of
any interest on any Debt Security of such series, or any related coupon, issued
under such Indenture when such interest or coupon becomes due and payable, and
continuance of such default for a period of 30 days whether or not, in the case
of the Senior Subordinated Debt Securities and the Subordinated Debt Securities,
such payment shall be prohibited by the subordination provisions of Article
Thirteen (Subordination) or Article Fourteen (Subordinated Guarantees) of the
Senior Subordinated Indenture and Subordinated Indenture, respectively;
(2) default in the payment of the principal of (or premium, if any, on) any Debt
Security of such series when due and payable, at its Maturity, upon
acceleration, redemption or otherwise, whether or not, in the case of the Senior
Subordinated Debt Securities and Subordinated Debt Securities, such payment
shall be prohibited by the subordination provisions of Article Thirteen
(Subordination) or Article Fourteen (Subordinated Guarantees) of the Senior
Subordinated Indenture and Subordinated Indenture, respectively; (3) default in
the performance, or breach, of any covenant or warranty of Viacom in such
Indenture (other than a covenant or warranty a default in whose performance or
whose breach is elsewhere in the relevant Indenture specifically dealt with or
which has expressly been included in that Indenture solely for the benefit of a
series of Debt Securities other than that series) and continuance of such
default or breach for a period of 60 days after there has been given, by
registered or certified mail, to Viacom and all relevant Agent Banks by the
Trustee or to Viacom, the Trustee and all relevant Agent Banks by the holders of
at least 33 1/3% in principal amount of the Outstanding Debt Securities of that
series a written notice specifying such default or breach and requiring it to be
remedied and stating that such notice is a "Notice of Default" under the
relevant Indenture; (4) one or more defaults shall have occurred under any
agreements, indentures or instruments under which Viacom then has outstanding
Indebtedness in excess of $100 million in the aggregate and, if not already
matured at its final maturity in accordance with its terms, such Indebtedness
shall have been accelerated and remains unpaid; (5) the entry by a court having
jurisdiction in the premises of a money judgment in an amount in excess of
$250 million against Viacom which has become final and not subject to appeal,
and the continuance of any such judgment unstayed, in effect and unpaid for a
period of 90 days; and (6) certain events of bankruptcy, insolvency or
reorganization of Viacom or, if a guarantor, Viacom International.
(Section 501)

    Unless otherwise specified in an applicable Prospectus Supplement, if an
Event of Default with respect to a series of Debt Securities (other than as
specified in (6) above) shall occur and be continuing under an Indenture, either
the applicable Trustee or the Holders of not less than 33 1/3% in aggregate
principal amount of such series of Debt Securities outstanding may declare
immediately due and payable the "Default Amount", which is defined as the unpaid
principal (or, if the Securities of that series are Original Issue Discount Debt
Securities, such portion of the principal amount thereof as may be specified in
the terms of that series) of (and premium, if any) and any accrued interest in
respect of each such Debt Security outstanding; PROVIDED, HOWEVER, that, with
respect to the Senior Subordinated Debt Securities and the Subordinated Debt
Securities, if any Credit Agreement is then in effect, such declaration shall
not become effective until the first to occur of (i) an acceleration under any
Credit Agreement or (ii) the fifth

                                       10
<PAGE>
Business Day after notice of such declaration is received by Viacom and each
Agent Bank (unless on or prior to such fifth Business Day Viacom shall have
discharged or caused to be discharged the Indebtedness, if any, that is the
subject of the Event of Default or otherwise cured the default relating to the
Event of Default); and PROVIDED FURTHER that no action on the part of such
Trustee or any Holder of such Debt Securities is required for such declaration
if an Event of Default specified in (6) above shall occur and be continuing; and
PROVIDED FURTHER that, after such declaration, but before a judgment or decree
based on such declaration has been obtained, the Holders of a majority in
aggregate principal amount of Outstanding Debt Securities of such series may,
under certain circumstances, rescind or annul such declaration if all Events of
Default, other than the nonpayment of accelerated principal, have been cured or
waived as provided in the Indenture. (Section 502) The Holders of not less than
a majority in principal amount of a series of Debt Securities Outstanding also
have the right to waive certain past defaults under their respective Indenture
on behalf of the Holders of all the Debt Securities of such series.
(Section 513)

    Unless otherwise specified in an applicable Prospectus Supplement, no Holder
of any Debt Security of any series issued under an Indenture has any right to
institute any proceeding with respect to such Indenture, or for any remedy
thereunder, or for the appointment of a receiver or trustee, unless (i) such
Holder has previously given to the Trustee with respect to such Indenture
written notice of a continuing Event of Default under such Indenture, (ii) the
Holders of not less than 33 1/3% in principal amount of the Outstanding Debt
Securities of such series issued under such Indenture have made written request,
and offered an indemnity reasonably satisfactory, to such Trustee to institute
such proceeding as Trustee under the Indenture and (iii) the Trustee has not
received from the Holders of a majority in principal amount of the Outstanding
Debt Securities of such series a direction inconsistent with such request and
the Trustee has failed to institute such proceeding within 60 days after receipt
of such notice. (Section 507) Such limitations do not apply, however, to a suit
instituted by a Holder of a Debt Security of such series for the enforcement of
payment of the principal of, or premium, if any, or interest on such Debt
Security on or after the respective due dates expressed in such Debt Security.
(Section 508)

    During the existence of an Event of Default, the Trustee is required to
exercise such rights and powers vested in it under the Indenture and use the
same degree of care and skill in its exercise thereof as a prudent person would
exercise under the circumstances in the conduct of such person's own affairs.
Subject to the provisions of the Indenture relating to the duties of the
Trustee, in case an Event of Default shall occur and be continuing, the Trustee
is not under any obligation to exercise any of its rights or powers under the
Indenture at the request or direction of any of the Holders unless such Holders
shall have offered to the Trustee security or indemnity reasonably satisfactory
to the Trustee. (Section 602) Subject to such provisions for the indemnification
of the Trustee and to certain other limitations, the Holders of a majority in
principal amount of a series of Outstanding Debt Securities shall have the right
to direct the time, method and place of conducting any proceeding for any remedy
available to the Trustee, or exercising any trust or power conferred on the
Trustee under the Indenture. (Section 512)

    Viacom is required to furnish to each Trustee an annual statement as to the
performance by Viacom of its obligations under each Indenture and as to any
default in such performance. Viacom is also required to notify each Trustee of
any event that is, or after notice or lapse of time or both would become, an
Event of Default. (Section 1008)

MEETINGS, MODIFICATION AND WAIVER

    Modifications and amendments of an Indenture may be made by Viacom, Viacom
International, as guarantor, and the Trustee with the consent of the Holders of
not less than a majority in aggregate principal amount of the Outstanding Debt
Securities of each series affected by such modification or amendment; PROVIDED,
HOWEVER, that no such modification or amendment may, without the consent of the
Holder of each Outstanding Debt Security affected thereby, (a) change the Stated
Maturity of the principal of, or any installment of principal of or interest on,
any Debt Security or the terms of any sinking fund or analogous payment with
respect to any Debt Security, (b) reduce the principal amount of, or

                                       11
<PAGE>
premium or interest on, any Debt Security, (c) change any obligation of Viacom
to pay additional amounts, (d) reduce the amount of principal of an Original
Issue Discount Debt Security payable upon acceleration of the Maturity thereof
or provable in bankruptcy, (e) change the Place of Payment where, or the coin or
currency in which, any Debt Security or any premium or interest thereon is
payable, (f) impair the right to institute suit for the enforcement of any
payment on or with respect to any Debt Security, (g) reduce the percentage in
principal amount of Outstanding Debt Securities of any series, the consent of
whose Holders is required for modification or amendment of such Indenture or for
waiver of compliance with certain provisions of such Indenture or for waiver of
certain defaults, (h) reduce the requirements contained in such Indenture for
quorum or voting, (i) change any obligation of Viacom to maintain an office or
agency in the places and for the purposes required by such Indenture, or
(j) reduce the obligations of Viacom International, if any, in respect of the
due and punctual payment of any principal of, premium or interest on any Debt
Security or any additional amounts in respect thereof. (Section 902)

    The Holders of at least a majority in aggregate principal amount of the
Outstanding Debt Securities of a series may, on behalf of the Holders of all the
Debt Securities of that series, waive, insofar as that series is concerned,
compliance by Viacom with certain provisions of an Indenture. (Section 1009) The
Holders of not less than a majority in aggregate principal amount of the
Outstanding Debt Securities of a series may, on behalf of all Holders of Debt
Securities of that series, waive any past default under the Indenture with
respect to Debt Securities of that series, except a default (a) in the payment
of principal of or any premium or interest on any Debt Security of such series
or (b) in respect of any other provision of the Indenture that cannot be
modified or amended without the consent of the Holder of each Outstanding Debt
Security of such series affected thereby. (Section 513)

    Each Indenture will provide that, in determining whether the Holders of the
requisite principal amount of the Outstanding Debt Securities have given any
request, demand, authorization, direction, notice, consent or waiver thereunder
or are present at a meeting of Holders of Debt Securities for quorum purposes,
the principal amount of an Original Issue Discount Debt Security that shall be
deemed to be Outstanding shall be the amount that would be due and payable as of
the date of such determination upon acceleration of the Maturity thereof.
(Section 101)

    Unless otherwise specified in an applicable Prospectus Supplement, each
Indenture will contain provisions for convening meetings of the Holders of Debt
Securities of any or all series. (Section 1601) A meeting may be called at any
time by the Trustee, and also, upon request, by Viacom or the Holders of at
least 33 1/3% in aggregate principal amount of the Outstanding Debt Securities
of such series, in any such case upon notice given in accordance with
"--Notices" below. (Section 1602) Except for any consent that must be given by
the Holder of each Outstanding Debt Security affected thereby, as described
above, any resolution presented at a meeting or adjourned meeting at which a
quorum is present may be adopted by the affirmative vote of the Holders of a
majority in principal amount of the Outstanding Debt Securities of that series;
PROVIDED, HOWEVER, that, except for any consent that must be given by the Holder
of each Outstanding Debt Security affected thereby, as described above, any
resolution with respect to any consent, waiver, request, demand, notice,
authorization, direction or other action that may be made, given or taken by the
Holders of not less than a specified percentage in principal amount of the
Outstanding Debt Securities of a series may be adopted at a meeting or an
adjourned meeting at which a quorum is present only by the affirmative vote of
the Holders of not less than such specified percentage in principal amount of
the Outstanding Debt Securities of that series. Any resolution passed or
decision taken at any meeting of Holders of Debt Securities of any series duly
held in accordance with an Indenture will be binding on all Holders of Debt
Securities of that series. The quorum at any meeting called to adopt a
resolution, and at any adjourned meeting, will be Persons holding or
representing a majority in principal amount of the Outstanding Debt Securities
of a series; PROVIDED, HOWEVER, that, if any action is to be taken at such
meeting with respect to a consent, waiver, request, demand, notice,
authorization, direction or other action that may be given by the Holders of not
less than a specified percentage in principal amount of the Outstanding Debt
Securities of a series, the Persons holding or representing such specified

                                       12
<PAGE>
percentage in principal amount of the Outstanding Debt Securities of such series
will constitute a quorum. (Section 1604)

NOTICES

    Notices to Holders of Debt Securities will be given by mail to the addresses
of such Holders as they appear in the Security Register. (Sections 101, 106)

TITLE

    Viacom, Viacom International, as guarantor, the Trustee and any agent of
Viacom, Viacom International, as guarantor, or the Trustee may treat the
registered owner of any registered Debt Security as the absolute owner thereof
(whether or not such Debt Security shall be overdue and notwithstanding any
notice to the contrary) for the purpose of making payment and for all other
purposes. (Section 309)

REPLACEMENT OF DEBT SECURITIES

    Any mutilated Debt Security will be replaced by Viacom at the expense of the
Holder upon surrender of such Debt Security to the Trustee. Debt Securities that
become destroyed, lost or stolen will be replaced by Viacom at the expense of
the Holder upon delivery to the Trustee of evidence of the destruction, loss or
theft thereof satisfactory to Viacom and the Trustee. In the case of a
destroyed, lost or stolen Debt Security, an indemnity satisfactory to the
Trustee and Viacom may be required at the expense of the Holder of such Debt
Security before a replacement Debt Security will be issued. (Section 306)

DEFEASANCE AND COVENANT DEFEASANCE

    Unless otherwise specified in the applicable Prospectus Supplement for a
series of Debt Securities, Viacom may elect either (i) to defease and be
discharged (and, if applicable, to have Viacom International defeased and
discharged) from any and all obligations with respect to such Outstanding Debt
Securities (except as otherwise provided in the Indenture) ("defeasance") or
(ii) to be released from its obligations with respect to certain covenants that
are described in the Indenture ("covenant defeasance"), upon the deposit with
the Trustee (or other qualifying trustee), in trust for such purpose, of money
and/or Government Obligations that through the payment of principal and interest
in accordance with their terms will provide money in an amount sufficient,
without reinvestment, to pay the principal of, premium, if any, and interest on
the Debt Securities of such series to Maturity or redemption, as the case may
be, and any mandatory sinking fund or analogous payments thereon. As a condition
to defeasance or covenant defeasance, Viacom must deliver to the Trustee an
Opinion of Counsel to the effect that the Holders of the Debt Securities of such
series will not recognize income, gain or loss for United States federal income
tax purposes as a result of such defeasance or covenant defeasance and will be
subject to United States federal income tax on the same amounts, in the same
manner and at the same times as would have been the case if such defeasance or
covenant defeasance had not occurred. Such Opinion of Counsel, in the case of
defeasance under clause (i) above, must refer to and be based upon a ruling of
the Internal Revenue Service or a change in applicable United States federal
income tax law occurring after the date of the Indenture. (Senior Indenture
Article Fifteen, Senior Subordinated Indenture Article Seventeen and
Subordinated Indenture Article Seventeen)

    Viacom may exercise its defeasance option with respect to Debt Securities of
any series notwithstanding its prior exercise of its covenant defeasance option.
If Viacom exercises its defeasance option, payment of the Debt Securities of
such series may not be accelerated because of an Event of Default and the
Guarantees relating to such Debt Securities will cease to exist. If Viacom
exercises its covenant defeasance option, payment of the Debt Securities of such
series may not be accelerated by reference to any covenant from which Viacom is
released as described under clause (ii) above. However, if acceleration were to
occur for other reasons, the realizable value at the acceleration date of the
money and Government Obligations

                                       13
<PAGE>
in the defeasance trust could be less than the principal and interest then due
on the Debt Securities of such series, in that the required deposit in the
defeasance trust is based upon scheduled cash flows rather than market value,
which will vary depending upon interest rates and other factors.

GOVERNING LAW

    The Indentures, the Debt Securities and, if applicable, the Guarantees, will
be governed by, and construed in accordance with, the laws of the State of New
York. (Section 113)

REGARDING THE TRUSTEE

    Viacom and Viacom International maintain deposit accounts and banking and
borrowing relations with The First National Bank of Boston, the trustee under
the Senior Indenture, the Senior Subordinated Indenture and the Subordinated
Indenture, and such trustee is currently a lender to Viacom and Viacom
International. The trustee may be removed by Viacom at any time with respect to
the Debt Securities of any series, PROVIDED that Viacom immediately appoints a
successor trustee meeting the requirements for trustees specified in the
Indentures and PROVIDED FURTHER that no Default with respect to such Debt
Securities has occurred and is continuing. (Section 608)

CERTAIN DEFINITIONS

    Unless otherwise specified in an applicable Prospectus Supplement, the
following definitions are applicable to one or all of the Indentures relating to
the Debt Securities:

    "Capitalized Lease" means any obligation of a Person to pay rent or other
amounts incurred with respect to real property or equipment acquired or leased
by such Person and used in its business that is required to be recorded as a
capital lease in accordance with generally accepted accounting principles
consistently applied as in effect from time to time.

    "Credit Agreement" means any credit agreement under which Viacom or any
successor thereto is a borrower, in the principal amount of at least
$100 million.

    "Currency Agreement" means any foreign exchange contract, currency swap
agreement or other similar agreement or arrangement relating to fluctuations in
currency values.

    "Indebtedness" of any Person means, without duplication (i) any obligation
of such Person for money borrowed, (ii) any obligation of such Person evidenced
by bonds, debentures, notes or other similar instruments, (iii) any
reimbursement obligation of such Person in respect of letters of credit or other
similar instruments which support financial obligations which would otherwise
become Indebtedness, (iv) any obligation of such Person under Capitalized Leases
(other than in respect of (x) telecommunications equipment including, without
limitation, satellite transponders, and (y) theme park equipment and
attractions), and (v) any obligation of any third party to the extent secured by
a Lien on the assets of such Person; PROVIDED, HOWEVER, that "Indebtedness" of
such Person shall not include any obligation of such Person (i) to any
Subsidiary of such Person or to any Person with respect to which such Person is
a Subsidiary or (ii) specifically with respect to the production, distribution
or acquisition of motion pictures or other programming rights, talent or
publishing rights. When used with respect to Viacom, the term "Indebtedness"
also includes any obligation of Viacom International specified in clauses
(i) through (v) above to the extent that said Indebtedness is guaranteed by
Viacom.

    "Interest Rate Agreement" means any interest rate swap agreement, interest
rate cap agreement, interest rate collar agreement or other similar agreement
relating to fluctuations in interest rates.

    "Lien" means any pledge, mortgage, lien, encumbrance or other security
interest.

    "Officer's Certificate" means a certificate signed by any Officer of Viacom
or Viacom International, as the case may be, in his or her capacity as such
Officer and delivered to the Trustee.

                                       14
<PAGE>
    "Outstanding Senior Subordinated Securities" means the 7% Senior
Subordinated Debentures due 2003, Series A and B; the 10 1/4% Senior
Subordinated Notes due 2001; the 9 1/8% Senior Subordinated Notes due 1999; and
the 8 3/4% Senior Subordinated Reset Notes due 2001; in each case, of Viacom
International.

    "Principal Property" means any parcel of real property and related fixtures
or improvements (other than telecommunications equipment, including, without
limitation, satellite transponders) owned by Viacom, Viacom International or any
wholly owned Subsidiary of Viacom and located in the United States, the
aggregate book value of which on the date of determination exceeds
$500 million, other than any such real property and related fixtures or
improvements which, as determined in good faith by the Board of Directors of
Viacom, is not of material importance to the total business conducted by Viacom
and its Subsidiaries, taken as a whole.

    "Restricted Subsidiary" means a corporation all of the outstanding voting
stock of which is owned, directly or indirectly, by Viacom or by one or more of
its Subsidiaries, or by Viacom and one or more of its Subsidiaries, which is
incorporated under the laws of a State of the United States, and which owns a
Principal Property.

    "Senior and Senior Subordinated Obligations" of any Persons means (i) the
Senior Obligations of such Person, (ii) any obligation of such Person under, or
any guarantee by such Person of, as the case may be, the Outstanding Senior
Subordinated Securities, (iii) any obligation of such Person under, or any
guarantee by such Person of, as the case may be, any Senior Subordinated Debt
Securities, (iv) any obligation of such Person to a third party or any guarantee
by such Person of any obligation to a third party (including, without
limitation, any Affiliate of such Person), in each case, whether now existing or
hereafter created, incurred or assumed, where such obligation or guarantee, as
the case may be, ranks PARI PASSU with (A) the obligation of such Person under,
or the guarantee by such Person of, as the case may be, the Outstanding Senior
Subordinated Securities or the Senior Subordinated Debt Securities or (B) any
other obligation of such Person to a third party or any other guarantee by such
Person of any obligation to a third party, whether now existing or hereafter
created, incurred or assumed which ranks PARI PASSU with the Outstanding Senior
Subordinated Securities or the Senior Subordinated Debt Securities and (v) any
obligation of such Person to a third party or any guarantee by such Person of
any obligation to a third party specified in the applicable Prospectus
Supplement as being Senior and Senior Subordinated Obligations; PROVIDED,
HOWEVER, that the obligations (but not the guarantees) of such Person described
in any of clauses (ii) through (v) above shall not include any obligation of
such Person to any Subsidiary of such Person or to any Person with respect to
which such Person is a Subsidiary; PROVIDED FURTHER, HOWEVER, that the
obligations and guarantees of such Person described in clauses (ii) through
(v) above (and not excluded therefrom pursuant to the immediately preceding
proviso) shall include the principal, premium, if any, and interest on, such
obligations or guarantees, as the case may be.

    "Senior Obligations" of any Person means (i) any obligation of such Person
for money borrowed, (ii) any obligation of such Person evidenced by bonds,
debentures, notes or other similar instruments, (iii) any obligation, contingent
or otherwise, of such Person in respect of letters of credit or bankers'
acceptances or other similar instruments (including any reimbursement obligation
of such Person with respect thereto), (iv) any obligation of such Person under
Capitalized Leases, (v) any obligation of such Person under any Interest Rate
Agreements or any Currency Agreements and (vi) any guarantee by such Person of
obligations of any third party (including, without limitation, any Affiliate of
such Person) of the type set forth in any of clauses (i) through (v) above; and
in the case of each of clauses (i) through (vi) above, whether such obligation
and/or instrument is outstanding on the date of execution of the Senior
Subordinated Indenture or the Subordinated Indenture, as the case may be, or
thereafter created, incurred or assumed; PROVIDED, HOWEVER, that (I) "Senior
Obligations" of such Person shall not include (1) any obligation of such Person
of the type set forth in any of clauses (i) through (v) above to any Subsidiary
of such Person or to any Person with respect to which such Person is a
Subsidiary, (2) any obligation of such Person of the type set forth in any of
clauses (i) through (vi) above which is by its terms subordinate or

                                       15
<PAGE>
junior in any respect to any other obligation of such Person of any such type or
(3) any obligation of such Person where the instrument creating or evidencing
such obligation or pursuant to which the same is outstanding expressly provides
that such obligation shall not be senior in right of payment to Senior
Subordinated Debt Securities or Subordinated Debt Securities, as the case may
be, and (II) "Senior Obligations" of such Person shall include the principal,
premium, if any, and interest on, any obligations of the type set forth in any
of clauses (i) through (vi) above (and not excluded from the scope of "Senior
Obligations" pursuant to clause (I) above). (Senior Subordinated Indenture
Section 101 and Subordinated Indenture Section 101)

    "Subsidiary" of any Person means (i) a corporation a majority of the
outstanding voting stock of which is at the time, directly or indirectly, owned
by such Person by one or more Subsidiaries of such Person, or by such Person and
one or more Subsidiaries thereof or (ii) any other Person (other than a
corporation), including, without limitation, a partnership or joint venture, in
which such Person, one or more Subsidiaries thereof or such Person and one or
more Subsidiaries thereof, directly or indirectly, at the date of determination
thereof, has at least majority ownership interest entitled to vote in the
election of directors, managers or trustees thereof (or other Person performing
similar functions). (Section 101)

                                       16
<PAGE>
                     DESCRIPTION OF SENIOR DEBT SECURITIES

    THE FOLLOWING TERMS AND CONDITIONS APPLY SOLELY TO SENIOR DEBT SECURITIES.
SEE "DESCRIPTION OF DEBT SECURITIES" FOR OTHER TERMS AND CONDITIONS THAT ARE
ALSO APPLICABLE TO SENIOR DEBT SECURITIES.

RANKING

    The payment of the principal of and premium, if any, and any interest on the
Senior Debt Securities will rank PARI PASSU with all other unsecured
unsubordinated obligations of Viacom.

GUARANTEES

    Viacom International will unconditionally guarantee the due and punctual
payment of the principal of, and premium, if any, and any interest on the Senior
Debt Securities, to the extent set forth in the applicable Prospectus
Supplement, when and as the same shall become due and payable, whether at
maturity, upon redemption, upon acceleration or otherwise. The guarantees of the
Senior Debt Securities (the "Senior Guarantees"), if issued, will be endorsed on
the Senior Debt Securities.

    The Senior Indenture provides that in the event that the Senior Guarantees
would constitute or result in a fraudulent transfer or conveyance for purposes
of, or result in a violation of, any United States federal, or applicable United
States state, fraudulent transfer or conveyance or similar law, then the
liability of Viacom International under the Senior Guarantees shall be reduced
to the extent necessary to eliminate such fraudulent transfer or conveyance or
violation under the applicable fraudulent transfer or conveyance or similar law.
(Senior Indenture Section 1303) Application of this clause could limit the
amount which Holders of Senior Debt Securities may be entitled to collect under
the Senior Guarantees. Holders, by their acceptance of the Senior Debt
Securities, will have agreed to such limitations. See "Certain
Considerations--Fraudulent Conveyance Considerations".

    The Senior Guarantees represent unsecured general obligations of Viacom
International and will rank PARI PASSU with the other unsecured unsubordinated
obligations of Viacom International and will be senior to the Senior
Subordinated Guarantees and the Subordinated Guarantees (each as defined below).

               DESCRIPTION OF SENIOR SUBORDINATED DEBT SECURITIES

    THE FOLLOWING TERMS AND CONDITIONS APPLY SOLELY TO SENIOR SUBORDINATED DEBT
SECURITIES. SEE "DESCRIPTION OF DEBT SECURITIES" FOR OTHER TERMS AND CONDITIONS
THAT ARE ALSO APPLICABLE TO SENIOR SUBORDINATED DEBT SECURITIES.

SUBORDINATION

    The payment of the principal of and premium, if any, and any interest on the
Senior Subordinated Debt Securities will, to the extent set forth in the Senior
Subordinated Indenture, be subordinated in right of payment to the prior payment
in full of all Senior Obligations of Viacom. (Senior Subordinated Indenture
Section 1301) Subject to any exceptions provided for in the applicable
Prospectus Supplement, upon any payment or distribution of assets to creditors
upon any liquidation, dissolution, winding up, reorganization, assignment for
the benefit of creditors, marshalling of assets or any bankruptcy, insolvency or
similar proceedings of Viacom, the holders of all Senior Obligations of Viacom
will first be entitled to receive payment in full of all amounts due or to
become due thereon before the Holders of the Senior Subordinated Debt Securities
will be entitled to receive any payment or distribution in respect of the
principal of, premium, if any, or any interest on the Senior Subordinated Debt
Securities, and in the event that, notwithstanding the foregoing, the Trustee
under the Senior Subordinated Indenture or the Holder of any Senior Subordinated
Debt Security receives any payment or distribution of assets of any kind or
character before all Senior Obligations of Viacom are paid in full, then such
payment or distribution will be required to be paid over or delivered forthwith
to the trustee in bankruptcy, receiver, liquidating trustee, custodian,
assignee, agent or other Person making payment or distribution of assets of
Viacom for

                                       17
<PAGE>
application to the payment of all Senior Obligations of Viacom remaining unpaid,
to the extent necessary to pay all Senior Obligations of Viacom in full. (Senior
Subordinated Indenture Section 1302) No payments on account of principal,
premium, if any, or any interest in respect of the Senior Subordinated Debt
Securities may be made if there shall have occurred and be continuing (i) a
default in any payment with respect to any Senior Obligations of Viacom beyond
any applicable grace period (a "payment event of default"), (ii) an event of
default (other than a payment event of default) with respect to any Senior
Obligations of Viacom resulting in the acceleration of the maturity thereof,
(iii) any event of default (other than a payment event of default) with respect
to any Senior Obligations of Viacom permitting the holders thereof to accelerate
the maturity thereof after Viacom or the Trustee under the Senior Subordinated
Indenture is notified of such event by a representative of a holder of Senior
Obligations of Viacom (until the earlier of (A) 180 days thereafter and (B) the
date, if any, on which such event is cured or waived or the related indebtedness
is discharged) or (iv) the pendency of any judicial proceeding with respect to
any such default; and in the event that Viacom makes any payment to the Trustee
under the Senior Subordinated Indenture or the Holder of any Senior Subordinated
Debt Security prohibited by the foregoing, then such payment will be required to
be paid over and delivered forthwith to the appropriate Agent Bank. (Senior
Subordinated Indenture Section 1303)

    Subject to the payment in full of all Senior Obligations of Viacom, the
Holders of the Senior Subordinated Debt Securities shall be subrogated to the
rights of the holders of Senior Obligations of Viacom to receive payments or
distributions of assets of Viacom applicable to Senior Obligations of Viacom
until the Senior Subordinated Debt Securities are paid in full. (Senior
Subordinated Indenture Section 1305)

    By reason of such subordination, in the event of insolvency, the holders of
Senior Obligations of Viacom may recover more, ratably, than the Holders of the
Senior Subordinated Debt Securities.

    At December 31, 1994, Viacom had outstanding approximately $8.9 billion of
Senior Obligations.

SENIOR SUBORDINATED GUARANTEES

    Viacom International will unconditionally guarantee the due and punctual
payment of the principal of, and premium, if any, and any interest on the Senior
Subordinated Debt Securities, to the extent set forth in the applicable
Prospectus Supplement, when and as the same shall become due and payable,
whether at maturity, upon redemption, upon acceleration or otherwise. The
guarantees of the Senior Subordinated Debt Securities (the "Senior Subordinated
Guarantees"), if issued, will be endorsed on the Senior Subordinated Debt
Securities.

    The Senior Subordinated Guarantees will be subordinate in right of payment
(to the same extent as described with respect to Viacom under "--Subordination"
above) to the prior payment in full of all Senior Obligations of Viacom
International, including the Senior Guarantees.

    The Senior Subordinated Indenture provides that in the event that the Senior
Subordinated Guarantees would constitute or result in a fraudulent transfer or
conveyance for purposes of, or result in a violation of, any United States
federal, or applicable United States state, fraudulent transfer or conveyance or
similar law, then the liability of Viacom International under the Senior
Subordinated Guarantees shall be reduced to the extent necessary to eliminate
such fraudulent transfer or conveyance or violation under the applicable
fraudulent transfer or conveyance or similar law. (Senior Subordinated Indenture
Section 1422) Application of this clause could limit the amount which Holders of
Senior Subordinated Debt Securities may be entitled to collect under the Senior
Subordinated Guarantees. Holders, by their acceptance of the Senior Subordinated
Debt Securities, will have agreed to such limitations. See "Certain
Considerations--Fraudulent Conveyance Considerations".

    At December 31, 1994, Viacom International had outstanding approximately
$8.5 billion of Senior Obligations (substantially all of which is included in
the $8.9 billion of Senior Obligations of Viacom referred to above).

                                       18
<PAGE>
                  DESCRIPTION OF SUBORDINATED DEBT SECURITIES

    THE FOLLOWING TERMS AND CONDITIONS APPLY SOLELY TO SUBORDINATED DEBT
SECURITIES. SEE "DESCRIPTION OF DEBT SECURITIES" FOR OTHER TERMS AND CONDITIONS
THAT ARE ALSO APPLICABLE TO SUBORDINATED DEBT SECURITIES.

SUBORDINATION

    The payment of the principal of and premium, if any, and any interest on the
Subordinated Debt Securities will, to the extent set forth in the Subordinated
Indenture, be subordinated in right of payment to the prior payment in full of
all Senior and Senior Subordinated Obligations of Viacom. (Subordinated
Indenture Section 1301) The applicable Prospectus Supplement will set forth any
additional indebtedness to which the Subordinated Debt Securities are
subordinate. Subject to any exceptions provided for in the applicable Prospectus
Supplement, upon any payment or distribution of assets to creditors upon any
liquidation, dissolution, winding up, reorganization, assignment for the benefit
of creditors, marshalling of assets or any bankruptcy, insolvency or similar
proceedings of Viacom, the holders of all Senior and Senior Subordinated
Obligations of Viacom will first be entitled to receive payment in full of all
amounts due or to become due thereon before the Holders of the Subordinated Debt
Securities will be entitled to receive any payment or distribution in respect of
the principal of, premium, if any, or any interest on the Subordinated Debt
Securities, and in the event that, notwithstanding the foregoing, the Trustee
under the Subordinated Indenture or the Holder of any Subordinated Debt Security
receives any payment or distribution of assets of any kind or character before
all Senior and Senior Subordinated Obligations of Viacom are paid in full, then
such payment or distribution will be required to be paid over or delivered
forthwith to the trustee in bankruptcy, receiver, liquidating trustee,
custodian, assignee, agent or other Person making payment or distribution of
assets of Viacom for application to the payment of all Senior and Senior
Subordinated Obligations of Viacom remaining unpaid, to the extent necessary to
pay all Senior and Senior Subordinated Obligations of Viacom in full.
(Subordinated Indenture Section 1302) No payments on account of principal,
premium, if any, or any interest in respect of the Subordinated Debt Securities
may be made if there shall have occurred and be continuing (i) a default in any
payment with respect to any Senior and Senior Subordinated Obligations of Viacom
beyond any applicable grace period (a "payment event of default"), (ii) an event
of default (other than a payment event of default) with respect to any Senior
and Senior Subordinated Obligations of Viacom resulting in the acceleration of
the maturity thereof, (iii) any event of default (other than a payment event of
default) with respect to any Senior and Senior Subordinated Obligations of
Viacom permitting the holders thereof to accelerate the maturity thereof after
Viacom or the Trustee under the Subordinated Indenture is notified of such event
by a representative of a holder of Senior and Senior Subordinated Obligations of
Viacom (until the earlier of (A) 180 days thereafter and (B) the date, if any,
on which such event is cured or waived or the related indebtedness is
discharged) or (iv) the pendency or any judicial proceeding with respect to any
such default; and in the event that Viacom makes any payment to the Trustee
under the Subordinated Indenture or the Holder of any Subordinated Debt Security
prohibited by the foregoing, then such payment will be required to be paid over
and delivered forthwith to the appropriate Agent Bank. (Subordinated Indenture
Section 1303)

    Subject to the payment in full of all Senior and Senior Subordinated
Obligations of Viacom, the Holders of the Subordinated Debt Securities shall be
subrogated to the rights of the holders of Senior and Senior Subordinated
Obligations of Viacom to receive payments or distributions of assets of Viacom
applicable to Senior and Senior Subordinated Obligations of Viacom until the
Subordinated Debt Securities are paid in full. (Subordinated Indenture
Section 1305)

    By reason of such subordination, in the event of insolvency, the holders of
Senior and Senior Subordinated Obligations of Viacom may recover more, ratably,
than the Holders of the Subordinated Debt Securities.

    At December 31, 1994, Viacom had outstanding approximately $9.6 billion of
Senior and Senior Subordinated Obligations.

                                       19
<PAGE>
SUBORDINATED GUARANTEES

    Viacom International will unconditionally guarantee the due and punctual
payment of the principal of, and premium, if any, and any interest on the
Subordinated Debt Securities, to the extent set forth in the applicable
Prospectus Supplement, when and as the same shall become due and payable,
whether at maturity, upon redemption, upon acceleration or otherwise. The
guarantees of the Subordinated Debt Securities (the "Subordinated Guarantees"),
if issued, will be endorsed on the Subordinated Debt Securities.

    The Subordinated Guarantees will be subordinate in right of payment (to the
same extent as described with respect to Viacom under "--Subordination" above)
to the prior payment in full of all Senior and Senior Subordinated Obligations
of Viacom International, including the Senior Guarantees and the Senior
Subordinated Guarantees.

    The Subordinated Indenture provides that in the event that the Subordinated
Guarantees would constitute or result in a fraudulent transfer or conveyance for
purposes of, or result in a violation of, any United States federal, or
applicable United States state, fraudulent transfer or conveyance or similar
law, then the liability of Viacom International under the Subordinated
Guarantees shall be reduced to the extent necessary to eliminate such fraudulent
transfer or conveyance or violation under the applicable fraudulent transfer or
conveyance or similar law. (Subordinated Indenture Section 1422) Application of
this clause could limit the amount which Holders of Subordinated Debt Securities
may be entitled to collect under the Subordinated Guarantees. Holders, by their
acceptance of the Subordinated Debt Securities, will have agreed to such
limitations. See "Certain Considerations--Fraudulent Conveyance Considerations".

    At December 31, 1994, Viacom International had outstanding approximately
$9.2 billion of Senior and Senior Subordinated Obligations (substantially all of
which is included in the $9.6 billion of Senior and Senior Subordinated
Obligations of Viacom referred to above).

                         DESCRIPTION OF PREFERRED STOCK

    UNDER ITS RESTATED CERTIFICATE OF INCORPORATION, AS AMENDED (THE "VIACOM
CERTIFICATE OF INCORPORATION"), VIACOM IS AUTHORIZED TO ADOPT RESOLUTIONS
PROVIDING FOR THE ISSUANCE, IN ONE OR MORE SERIES, OF UP TO 200,000,000 SHARES
OF ITS PREFERRED STOCK, WITH SUCH POWERS, PREFERENCES AND RELATIVE,
PARTICIPATING, OPTIONAL OR OTHER SPECIAL RIGHTS AND QUALIFICATIONS, LIMITATIONS
OR RESTRICTIONS THEREOF AS SHALL BE ADOPTED BY THE BOARD OF DIRECTORS OF VIACOM
OR A DULY AUTHORIZED COMMITTEE THEREOF.

    THE DESCRIPTION BELOW SETS FORTH CERTAIN GENERAL TERMS AND PROVISIONS OF
VIACOM'S PREFERRED STOCK COVERED BY THIS PROSPECTUS. THE SPECIFIC TERMS OF ANY
SERIES OF THE PREFERRED STOCK WILL BE DESCRIBED IN THE PROSPECTUS SUPPLEMENT
RELATING TO SUCH OFFERED SECURITIES. THE FOLLOWING SUMMARIES OF CERTAIN
PROVISIONS OF THE PREFERRED STOCK OFFERED HEREBY DO NOT PURPORT TO BE COMPLETE
AND ARE SUBJECT TO, AND ARE QUALIFIED IN THEIR ENTIRETY BY REFERENCE TO, THE
VIACOM CERTIFICATE OF INCORPORATION AND THE CERTIFICATE OF DESIGNATIONS RELATING
TO THE PARTICULAR SERIES OF PREFERRED STOCK.

    IF SO INDICATED IN THE APPLICABLE PROSPECTUS SUPPLEMENT, THE TERMS OF THE
OFFERED SECURITIES MAY DIFFER FROM THE TERMS SET FORTH BELOW, EXCEPT THOSE TERMS
REQUIRED BY THE VIACOM CERTIFICATE OF INCORPORATION.

GENERAL

    The Preferred Stock of any series offered hereby will, when issued, be fully
paid and nonassessable and holders thereof will have no preemptive rights. The
Prospectus Supplement applicable to any particular series of Preferred Stock
will describe the particular terms of the Preferred Stock of such series.

    Subject to the Viacom Certificate of Incorporation and to any limitations
contained in then outstanding Preferred Stock, Viacom may issue additional
series of Preferred Stock, at any time or from time to time, with such powers,
preferences and relative, participating, optional or other special rights and

                                       20
<PAGE>
qualifications, limitations or restrictions thereof, as the Board of Directors
of Viacom or any duly authorized committee thereof shall determine, all without
further action of the stockholders, including holders of then outstanding
Preferred Stock, of Viacom. The Preferred Stock offered hereby may rank senior
to Viacom's common stock with respect to dividends and distribution of assets
upon liquidation or winding up. Issuance of a new series of Preferred Stock
could contain terms that adversely affect the voting power and other rights of
holders of other series of Preferred Stock.

    The Viacom Certificate of Incorporation provides that, so long as Viacom or
any of its subsidiaries holds any authorization from the Federal Communications
Commission, Viacom may prohibit the ownership or voting of a percentage of its
equity securities in order to ensure compliance with the requirements of the
Communications Act of 1934, as amended, and regulations thereunder.

DIVIDENDS

    Holders of the Preferred Stock offered hereby will be entitled to receive
cash dividends, when, as and if declared by the Board of Directors of Viacom out
of assets of Viacom legally available for payment, at such rate and on such
dates as will be set forth in the applicable Prospectus Supplement. Each
dividend will be payable to holders of record as they appear on the stock books
of Viacom on the record date fixed by its Board of Directors. Dividends, if
cumulative, will be cumulative from and after the date set forth in the
applicable Prospectus Supplement.

    All dividends declared on any particular series of Preferred Stock offered
hereby for any dividend period and on any class or series of stock of Viacom
ranking on a parity with such particular series of Preferred Stock as to
dividends shall be declared pro rata so that the amounts of dividends per share
declared for such period on such particular series of Preferred Stock and on any
other class or series of stock ranking on a parity with such particular series
of Preferred Stock as to dividends that were outstanding during such period
shall in all cases bear to each other the same ratio that the accrued dividends
per share on the shares of such particular series of Preferred Stock and such
other stock bear to each other. As of the date of this Prospectus, Viacom has
issued 24 million shares of Series B Preferred Stock, which will rank equally
with or senior to any particular series of Preferred Stock offered hereby as to
dividends. Holders of shares of Series B Preferred Stock are entitled to receive
cumulative cash dividends at the rate per annum of $2.50 per share. The terms of
the Series B Preferred Stock contain restrictions on dividend declarations on
parity stock comparable to those described above in this paragraph.

    So long as any shares of any particular series of Preferred Stock offered
hereby are outstanding, Viacom may not (i) declare or pay any dividend or
distribution on any class or series of stock of Viacom ranking junior to such
particular series of Preferred Stock as to dividends or (ii) redeem or set apart
funds for the purchase or redemption of any such junior stock through a sinking
fund or otherwise, unless all accrued and unpaid dividends with respect to such
particular series of Preferred Stock have been paid or funds have been set apart
for payment through the current dividend period.

LIQUIDATION RIGHTS

    In the event of any voluntary or involuntary liquidation, dissolution or
winding up of Viacom, the holders of any particular series of Preferred Stock
offered hereby will be entitled to receive out of assets of Viacom available for
distribution to stockholders, before any distribution of assets is made to
holders of any stock ranking junior to such particular series of Preferred Stock
on liquidation, dissolution or winding up of Viacom, liquidating distributions
in the amount set forth in the applicable Prospectus Supplement plus all accrued
and unpaid dividends. If, upon any liquidation, dissolution or winding up of
Viacom, the assets of Viacom, or proceeds thereof, distributable among the
holders of such particular series of Preferred Stock shall be insufficient to
pay in full the preferential amount set forth in the applicable Prospectus
Supplement and the liquidation preference with respect to any other shares of
stock ranking, as to liquidation, dissolution or winding up, on a parity with
such particular series of Preferred Stock, then such assets, or the proceeds
thereof, shall be distributed among the holders of shares of such particular

                                       21
<PAGE>
series of Preferred Stock and any such other stock ratably in accordance with
the respective amounts which would be payable on such particular series of
Preferred Stock and any such other stock if all amounts payable thereon were
paid in full. The Series B Preferred Stock will rank equally with or senior to
any particular series of Preferred Stock offered hereby as to distribution of
assets upon liquidation, dissolution or winding up. In the event of any
liquidation, dissolution or winding up of Viacom, whether voluntary or
involuntary, holders of shares of Series B Preferred Stock shall receive $50.00
per share plus an amount per share equal to all dividends accrued and unpaid
thereon to the date of final distribution to such holders. The terms of the
Series B Preferred Stock contain restrictions on distributions on parity stock
in the event of the liquidation, dissolution or winding up of Viacom comparable
to those described above in this paragraph. After payment of the full amount of
the liquidating distribution to which they are entitled, the holders of the
Preferred Stock offered hereby will not be entitled to any further participation
in any distribution of assets by Viacom. A consolidation or merger of Viacom
with or into any other corporation or corporations or a sale of all or
substantially all of the assets of Viacom shall not be deemed to be a
liquidation, dissolution or winding up of Viacom.

REDEMPTION

    A series of the Preferred Stock offered hereby may be redeemable, in whole
or in part, at the option of Viacom, at the times and at the redemption prices
set forth in the applicable Prospectus Supplement.

VOTING RIGHTS

    Except as indicated below or in the applicable Prospectus Supplement, or
except as expressly required by applicable law, the holders of the Preferred
Stock offered hereby will not be entitled to vote. Except as indicated in the
applicable Prospectus Supplement, when and if any series is entitled to vote,
each share in such series will be entitled to one vote.

    Changes to the Viacom Certificate of Incorporation which adversely affect
the rights of the holders of any series of Preferred Stock offered hereby will
require two-thirds approval of the outstanding shares of such series.

                     DESCRIPTION OF CONTINGENT VALUE RIGHTS

    THE FOLLOWING STATEMENTS RELATING TO THE CVRS AND THE CVR AGREEMENT (AS
DEFINED BELOW) ARE SUMMARIES AND DO NOT PURPORT TO BE COMPLETE. SUCH SUMMARIES
MAY MAKE USE OF CERTAIN TERMS DEFINED IN THE CVR AGREEMENT AND ARE QUALIFIED IN
THEIR ENTIRETY BY EXPRESS REFERENCE TO THE CVR AGREEMENT. THE CVRS WILL BE
ISSUED UNDER A CONTINGENT VALUE RIGHTS AGREEMENT (THE "CVR AGREEMENT") TO BE
ENTERED INTO BETWEEN VIACOM AND HARRIS TRUST AND SAVINGS BANK, TRUSTEE (THE "CVR
TRUSTEE"), A FORM OF WHICH IS FILED AS AN EXHIBIT TO THE REGISTRATION STATEMENT
OF WHICH THIS PROSPECTUS IS A PART. THE FOLLOWING SUMMARIES OF CERTAIN
PROVISIONS OF THE CVR AGREEMENT DO NOT PURPORT TO BE COMPLETE, AND, WHERE
REFERENCE IS MADE TO PARTICULAR PROVISIONS OF THE CVR AGREEMENT, SUCH
PROVISIONS, INCLUDING THE DEFINITIONS OF CERTAIN TERMS, ARE INCORPORATED BY
REFERENCE AS A PART OF SUCH SUMMARIES OR TERMS, WHICH ARE QUALIFIED IN THEIR
ENTIRETY BY SUCH REFERENCE. REFERENCES TO SECTIONS IN THE FOLLOWING SUMMARIES
ARE REFERENCES TO SECTIONS OF THE CVR AGREEMENT. THE DEFINITIONS OF CERTAIN
CAPITALIZED TERMS USED IN THE FOLLOWING SUMMARY ARE SET FORTH BELOW UNDER
"--CERTAIN DEFINITIONS".

GENERAL

    The CVRs represent the right to receive (under certain circumstances) cash
or securities of Viacom depending on market prices of the Class B Common Stock
during certain specified periods. The CVR Agreement will provide that CVRs may
be issued in separate series thereunder without limitation as to the aggregate
number of CVRs. The terms of each series of CVRs will be established by or
pursuant to a resolution of the Board of Directors of Viacom and set forth or
determined in the manner provided in an

                                       22
<PAGE>
Officer's Certificate or by a supplemental CVR Agreement. (Section 301(a)) The
Prospectus Supplement applicable to any particular series of CVRs will describe
the particular terms of the CVRs of such series.

    Reference is made to the Prospectus Supplement relating to a particular
issuance of CVRs which will describe the following terms of a particular series
of CVRs, as may be applicable: (a) the title of the CVRs; (b) the Maturity Date
and any Extended Maturity Dates; (c) the Target Price; (d) the Minimum Price, if
any; (e) the Discount Rate, if any; (f) the Default Interest Rate, if any;
(g) the rate at which CVRs will bear interest, if any; (h) redemption
provisions, if any; (i) any deletions from, changes in or additions to Events of
Default or covenants of Viacom in the CVR Agreement; (j) the Valuation Period
and the method of determining the Current Market Value; (k) subordination
provisions, if any; (l) whether and under what circumstances a determination may
be made that no amount is payable with respect to the CVRs; and (m) any other
terms, conditions, rights and preferences (or limitations on such rights and
preferences) relating to the series (which terms shall not be inconsistent with
the requirements of the TIA or the provisions of the CVR Agreement), including,
without limitation, any modifications of the definitions set forth in the CVR
Agreement.

PAYMENT

    The CVR Agreement provides that, subject to adjustment as described under
"Antidilution" below, Viacom shall pay to each holder of the CVRs of a
particular series (each such person, a "CVR Holder") on a Maturity Date for such
series, unless Viacom shall, if applicable, in its sole discretion, extend a
Maturity Date to one or more Extended Maturity Dates for such series, then on
the final Extended Maturity Date for such series, such CVR held by such CVR
Holder, if applicable, an amount, if any, as determined by Viacom, by which the
Target Price for such series (as defined), if applicable, exceeds the greater of
the Current Market Value for such series and the Minimum Price for such series
(each as defined). Such determination by Viacom absent manifest error shall be
final and binding on Viacom and the CVR Holders. (Section 301(b))

    Unless otherwise provided in the applicable Prospectus Supplement, any
amount payable by Viacom in respect of the CVRs shall be paid, at Viacom's sole
discretion, either (i) in such coin or currency of the United States of America
as at the time is legal tender for the payment of public and private debts,
PROVIDED, HOWEVER, Viacom may pay such amounts by its check payable in such
money or (ii) by delivering the equivalent fair market value (as determined by
an Independent Financial Expert) of securities of Viacom, including, without
limitation, common stock or preferred stock, options or warrants therefor, other
securities convertible into or exchangeable for common stock or preferred stock,
notes, debentures, derivative securities or any other security of Viacom now
existing or hereafter created or any combination of the foregoing. There can be
no assurance, however, that such securities, if issued, would ultimately trade
in the market at a price at or above the value determined by the Independent
Financial Expert. Such securities, if issued, would be registered under the
Securities Act prior to the issuance thereof and a prospectus in connection with
such issuance would be delivered to holders of record of CVRs at that time.
Harris Trust Company of New York has initially been appointed as paying agent in
the Borough of Manhattan, The City of New York. (Section 307)

    Unless otherwise provided in the applicable Prospectus Supplement, Viacom
may at its option with respect to any series of CVRs, extend a Maturity Date to
an Extended Maturity Date and may extend an Extended Maturity Date to a further
Extended Maturity Date. Such options shall be exercised by (i) publishing notice
of an extension in the Authorized Newspaper and (ii) furnishing notice to the
Trustee and the CVR Holders of such series of such extension, in each case, not
less than one Business Day preceding the Maturity Date or the Extended Maturity
Date, as the case may be; PROVIDED, HOWEVER, that no defect in any such notice
shall affect the validity of the extension to any Extended Maturity Date and
that any notice when published and mailed to the Trustee and a CVR Holder in the
aforesaid manner shall be conclusively deemed to have been received by such CVR
Holder whether or not actually received by such CVR Holder. (Section 301(c))

                                       23
<PAGE>
PAYMENT UPON THE OCCURRENCE OF A DISPOSITION

    If applicable, upon the consummation of a Disposition, Viacom shall pay (in
cash or securities of Viacom) to each CVR Holder of each applicable series for
each CVR of such series held by such CVR Holder an amount, if any, as determined
by Viacom, by which the Discounted Target Price for such series exceeds the
greater of (i) the fair market value, as determined by an Independent Financial
Expert, of the consideration, if any, received for each share of Class B Common
Stock by the holder thereof as a result of such Disposition and assuming that
such holder did not exercise any right of appraisal granted under law with
respect to such Disposition and (ii) the Minimum Price with respect to such
series. Such determinations by Viacom and such Independent Financial Expert,
absent manifest error, shall be final and binding on Viacom and the CVR Holders.
Such payment, if any, shall be made on the Disposition Payment Date for such
series established by Viacom, which in no event shall be more than 30 days after
the date on which the Disposition was consummated. (Section 301(d)) As soon as
practicable, Viacom shall give CVR Holders for such series notice of such
Disposition and the Disposition Payment Date for such series. (Section 301(e))

NO INTEREST

    Unless otherwise specified in the applicable Prospectus Supplement with
respect to a particular series of CVRs, other than in the case of interest on
the Default Amount, no interest shall accrue on any amounts payable on the CVRs
to the CVR Holders. (Section 301(h))

EVENTS OF DEFAULT

    If an Event of Default with respect to a series of CVRs occurs and is
continuing, either the CVR Trustee or CVR Holders of not less than 33 1/3% of
the outstanding CVRs of that series, by notice in writing to Viacom (and to the
CVR Trustee if given by CVR Holders), may declare the CVRs of that series to be
due and payable immediately, and, upon any such declaration, Viacom shall pay to
the CVR Holders of that series (in cash or securities of Viacom, at Viacom's
option) for each CVR of that series held by the CVR Holders the applicable
Default Amount with interest at the applicable Default Interest Rate, from the
Default Payment Date through the date payment is made to the CVR Trustee.
(Section 801)

    If, at any time after the CVRs of a series shall have been so declared due
and payable, and before any judgment or decree for the payment of the amounts
due shall have been obtained or entered, Viacom shall pay or shall deposit with
the CVR Trustee a sum sufficient to pay all amounts which shall have become due
otherwise than by acceleration (with interest upon such overdue amount at the
Default Interest Rate to the date of such payment or deposit) and such amount as
shall be sufficient to cover reasonable compensation to the CVR Trustee, its
agents, attorneys and counsel, and all other expenses and liabilities incurred
and all advances made by the CVR Trustee, except as a result of negligence or
bad faith, and if any and all Events of Default, other than the nonpayment of
the amounts which shall have become due by acceleration, shall have been cured,
waived or otherwise remedied, then the CVR Holders holding a majority of the
CVRs of that series then Outstanding, by written notice to Viacom and to the CVR
Trustee, may waive all defaults with respect to CVRs of that series and rescind
and annul such declaration and its consequences, but no such waiver or
rescission and annulment shall extend to or shall affect any subsequent default
or shall impair any right consequent thereof. (Section 801)

CERTAIN PURCHASES AND SALES

    Unless otherwise specified in the applicable Prospectus Supplement, Viacom
will not, and Viacom will not permit any of its subsidiaries or controlled
Affiliates to, purchase any shares of Class B Common Stock in open market
transactions, in privately negotiated transactions or otherwise, on any day
during the period commencing 10 trading days before the Valuation Period with
respect to any series of CVRs and ending on the last day of such Valuation
Period, except with respect to employee benefit plans and other incentive
compensation arrangements. (Section 704)

                                       24
<PAGE>
ANTIDILUTION

    In the event Viacom shall in any manner subdivide (by stock split, stock
dividend or otherwise) or combine (by reverse stock split or otherwise) the
number of outstanding shares of Class B Common Stock, Viacom shall similarly
subdivide or combine the CVRs of each series Outstanding and shall appropriately
adjust the Discounted Target Price, if any, the Target Price and the Minimum
Price, if any. Whenever such an adjustment is made, Viacom shall (i) promptly
prepare a certificate setting forth such adjustment and a brief statement of the
facts accounting for such adjustment, (ii) promptly file with the CVR Trustee a
copy of such certificate and (iii) mail a brief summary thereof to each CVR
Holder of each series Outstanding. The CVR Trustee shall be fully protected in
relying on any such certificate and on any adjustment therein contained. Such
adjustment, absent manifest error, shall be final and binding on Viacom and the
CVR Holders. Each Outstanding CVR of each series Outstanding shall thenceforth
represent that number of adjusted CVRs of that series necessary to reflect such
subdivision or combinations and reflect the adjusted applicable Discounted
Target Price, Target Price and Minimum Price, if applicable. (Section 301(j))

CONSOLIDATION, MERGER AND SALE OF ASSETS

    The CVR Agreement provides that Viacom may, without the consent of the CVR
Holders of any of the Outstanding CVRs, consolidate with or merge into any other
Person or convey, transfer or lease its properties and assets substantially as
an entirety to any corporation, partnership or trust organized under the laws of
the United States of America, any state thereof or the District of Columbia,
PROVIDED that (i) the Surviving Person assumes Viacom's obligations under the
Outstanding CVRs and the CVR Agreement, (ii) immediately after giving pro forma
effect to the transaction, there exists no Event of Default and (iii) Viacom
delivers to the Trustee an Officer's Certificate regarding compliance with the
foregoing. For purposes of this paragraph, "convey, transfer or lease its
properties and assets substantially as an entirety" shall mean properties and
assets contributing in the aggregate at least 80% of Viacom's total revenues as
reported in Viacom's last available periodic financial report (quarterly or
annual, as the case may be) filed with the Commission. (Section 901)

CERTAIN DEFINITIONS

    Unless otherwise specified in the Prospectus Supplement applicable to a
particular series of CVRs, the following terms have the following definitions:

    "Authorized Newspaper" means THE WALL STREET JOURNAL (Eastern Edition) or,
if THE WALL STREET JOURNAL (Eastern Edition) shall cease to be published or if
the publication or general circulation of THE WALL STREET JOURNAL (Eastern
Edition) shall be suspended for whatever reason, such other English language
newspaper as is selected by Viacom with general circulation in The City of New
York, New York.

    "Disposition" means (i) a merger, consolidation or other business
combination involving Viacom as a result of which no shares of Class B Common
Stock shall remain outstanding, (ii) a sale, transfer or other disposition, in
one or a series of transactions, of all or substantially all of the assets of
Viacom or (iii) a reclassification of Class B Common Stock as any other capital
stock of Viacom or any other Person; PROVIDED, HOWEVER, that neither clause (i)
nor clause (ii) shall mean a merger, consolidation or other business combination
of Viacom and any subsidiary of Viacom, or to a sale, transfer or other
disposition by Viacom to any Subsidiary of Viacom. For purposes of this
definition, "all or substantially all of the assets of Viacom" shall mean
properties and assets contributing in the aggregate at least 80% of Viacom's
total revenues as reported in Viacom's last available periodic financial report
(quarterly or annual, as the case may be) filed with the Commission.

    "Disposition Payment Date" means the date established by Viacom, which in no
event shall be more than 30 days after the date on which the Disposition was
consummated, upon which Viacom shall pay in the manner provided in Section 307
of the CVR Agreement to each CVR Holder for each CVR of a particular series held
by such CVR Holder the applicable amount, if any, as determined by Viacom
pursuant to Section 301(d) of the Agreement.

                                       25
<PAGE>
    "Event of Default," with respect to the CVRs of any series, means each of
the following which shall have occurred and be continuing: (a) default in the
payment of all or any part of the amounts payable in respect of any of the CVRs
of that series as and when the same shall become due and payable either at the
Maturity Date, an Extended Maturity Date, the Disposition Payment Date, if
applicable, or otherwise; (b) default in the performance, or breach of any
covenant or warranty of Viacom in respect of that series, and continuance of
such default or breach for a period of 90 days after written notice has been
given to Viacom by the CVR Trustee or to Viacom and the CVR Trustee by CVR
Holders holding at least 33 1/3% of the CVRs of that series; or (c) certain
events of bankruptcy, insolvency, reorganization or other similar events in
respect of Viacom.

    "Independent Financial Expert" means an independent nationally recognized
investment banking firm.

                              PLAN OF DISTRIBUTION

    Viacom may sell the Offered Securities to or through underwriters, and also
may sell the Offered Securities directly to one or more other purchasers or
through dealers or agents. Viacom also may distribute the Offered Securities
directly to certain of its security holders in satisfaction of its obligations
in respect of the outstanding securities held by such security holders. The
Prospectus Supplement with respect to such Offered Securities will set forth the
terms of the offering of such Offered Securities, including the name or names of
any underwriters, dealers or agents with whom Viacom has entered into
arrangements with respect to the sale of such Offered Securities, the initial
public offering or purchase price of such Offered Securities, the net proceeds
to Viacom from such sale, any underwriting discounts, commissions and other
items constituting underwriters' compensation from Viacom and any other
discounts, concessions or commissions allowed or reallowed or paid by any
underwriters to other dealers, any commissions paid to any agents, and the
securities exchanges, if any, on which such Offered Securities may be listed.

    If underwriters are used in any offering of Offered Securities, the Offered
Securities will be acquired by the underwriters for their own accounts and may
be resold from time to time in one or more transactions, including negotiated
transactions, at a fixed public offering price or at varying prices determined
at the time of sale. Any initial public offering price and any discounts or
concessions allowed or reallowed or paid to dealers may be changed from time to
time. It is anticipated that any underwriting agreement pertaining to any
Offered Securities will (i) entitle the underwriters to indemnification by
Viacom against certain civil liabilities under the Securities Act, or to
contribution with respect to payments which the underwriters may be required to
make in respect thereof, (ii) provide that the obligations of the underwriters
will be subject to certain conditions precedent and (iii) provide that the
underwriters will be obligated to purchase all Offered Securities in a
particular offering if any such Offered Securities are purchased.

    The Offered Securities also may be sold to dealers, as principals. Each such
dealer may then resell such Offered Securities to the public at varying prices
to be determined by such dealer at the time of resale.

    The Offered Securities may be offered and sold by Viacom directly or through
agents designated by Viacom from time to time. Unless otherwise indicated in the
applicable Prospectus Supplement, any such agent or agents will be acting on a
best efforts basis for the period of its or their appointment.

    Dealers and agents named in a Prospectus Supplement may be deemed to be
underwriters (within the meaning of the Securities Act) of the Offered
Securities described therein and, under agreements which may be entered into
with Viacom, may be entitled to indemnification by Viacom against certain civil
liabilities under the Securities Act. Underwriters, dealers and agents may be
customers of, engage in transactions with, or perform services for, Viacom or
Viacom International in the ordinary course of business.

                                       26
<PAGE>
    The anticipated date of delivery of Offered Securities will be set forth in
the Prospectus Supplement relating to each offering.

                                 LEGAL MATTERS

    The validity of the Offered Securities and, if applicable, the related
Guarantees will be passed upon for Viacom and Viacom International by
Shearman & Sterling, New York, New York, counsel for such companies, and for any
underwriters by Hughes Hubbard & Reed and/or Simpson Thacher & Bartlett (a
partnership which includes professional corporations), New York, New York, or
such other counsel as may be named in the applicable Prospectus Supplement.
Hughes Hubbard & Reed and Simpson Thacher & Bartlett have each from time to time
performed legal services for Viacom and Viacom International.

                                    EXPERTS

    The (i) consolidated financial statements of Viacom as of December 31, 1994
and December 31, 1993 and for each of the three years in the period ended
December 31, 1994 incorporated by reference in this Prospectus from the Annual
Report on Form 10-K of Viacom for the year ended December 31, 1994,
(ii) consolidated financial statements of Viacom International as of
December 31, 1993 and December 31, 1992 and for each of the three years in the
period ended December 31, 1993 incorporated by reference in this Prospectus from
the Annual Report on Form 10-K of Viacom International for the year ended
December 31, 1993, as amended by Form 10-K/A Amendment No. 1 dated May 2, 1994,
and (iii) the consolidated financial statements of Paramount
Communications Inc. ("Paramount") as of March 31, 1994 and for the eleven months
ended March 31, 1994 incorporated by reference from the Current Report on
Form 8-K of Viacom dated April 13, 1995 (the "Viacom Form 8-K") have been so
incorporated in reliance on the reports of Price Waterhouse LLP, independent
accountants, given on the authority of such firm as experts in auditing and
accounting.

    The consolidated financial statements of Paramount at April 30, 1993 and at
October 31, 1992, and for the six-month period ended April 30, 1993, and for
each of the two years in the period ended October 31, 1992 incorporated by
reference in this Prospectus from the Viacom Form 8-K have been audited by
Ernst & Young LLP, independent auditors, as set forth in their reports thereon
included therein, and incorporated herein by reference. Such consolidated
financial statements are incorporated herein by reference in reliance upon such
reports given upon the authority of such firm as experts in accounting and
auditing.

    The consolidated financial statements and schedules of Blockbuster
Entertainment Corporation and subsidiaries as of December 31, 1993 and 1992 and
for each of the three years in the period ended December 31, 1993 incorporated
by reference in this Prospectus from the Viacom Form 8-K have been audited by
Arthur Andersen LLP, independent certified public accountants, as indicated in
their report with respect thereto, and are incorporated by reference herein in
reliance upon the authority of said firm as experts in accounting and auditing
in giving said report.

                                       27
<PAGE>
                           PRINCIPAL OFFICE OF VIACOM
                                 1515 Broadway
                            New York, New York 10036

                                    TRUSTEE
                                 Citibank, N.A.
                                111 Wall Street
                            New York, New York 10043

                 LUXEMBOURG LISTING, PAYING AND TRANSFER AGENT
                        Kredietbank S.A. Luxembourgeoise
                              43, Boulevard Royal
                               L-2955 Luxembourg

                                 LEGAL ADVISERS

<TABLE>
<S>                                            <C>
     TO VIACOM AND VIACOM INTERNATIONAL                     TO THE UNDERWRITERS
           AS TO UNITED STATES LAW                        AS TO UNITED STATES LAW
             Shearman & Sterling                         Hughes Hubbard & Reed LLP
            599 Lexington Avenue                          One Battery Park Plaza
          New York, New York 10022                       New York, New York 10004
</TABLE>

                               AUDITORS TO VIACOM
                           PricewaterhouseCoopers LLP
                          1301 Avenue of the Americas
                            New York, New York 10019


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission