EXHIBIT 99 (a)
                                                     --------------


                 VIACOM INC. AGREES TO SELL MADISON SQUARE GARDEN
                          TO ITT/CABLEVISION PARTNERSHIP

            New York, New York, August 28, 1994 -- Viacom Inc. (AMEX:
            VIA and VIAB) announced today that it has signed a
            definitive agreement to sell the operations of its Madison
            Square Garden unit to a partnership of ITT Corporation
            (NYSE: ITT) and Cablevision Systems Corporation (AMEX:
            CVC) for $1.075 billion.  Madison Square Garden
            principally includes the New York facility, the Garden's
            resident professional sports teams -- the Knicks and the
            Rangers -- and the MSG regional cable sports network.

            Proceeds from the transaction will be used to repay debt. 
            Viacom originally announced its exploration of the sale of
            the operations of Madison Square Garden on May 3, 1994. 
            The transaction is expected to be completed in the fall of
            1994.

            Sumner M. Redstone, Chairman of the Board of Viacom Inc.,
            said, "The sale of Madison Square Garden is a significant
            step in realizing our financial objectives and furthers
            our strategic focus as a content-driven enterprise.  We
            are delighted to be selling Madison Square Garden to ITT
            and Cablevision Systems.  They understand the value of the
            Garden, with its unique combination of assets, and are
            committed to realizing its potential for growth."

            Frank J. Biondi, Jr., President and Chief Executive
            Officer of Viacom Inc., said, "Madison Square Garden is a
            premium property and we are pleased we were able to
            convert its inherent value into a tangible benefit for our
            shareholders while taking a giant step forward in
            strengthening our balance sheet."

            The investment banking firm of Allen & Company
            Incorporated served as advisor to Viacom Inc. on the sale
            of Madison Square Garden.

                                      -more-

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            Viacom Inc. is one of the world's largest entertainment
            and publishing companies and a leading force in nearly
            every segment of the international media marketplace.  The
            operations of Viacom include Paramount Pictures; Paramount
            Television; MTV Networks; Showtime Networks Inc.; Simon &
            Schuster; Viacom Interactive Media; five regional theme
            parks; movie screens in 11 countries; cable systems
            serving 1.1 million customers; 12 television stations; and
            14 radio stations.  Blockbuster Entertainment Corporation
            is expected to merge into Viacom Inc. following a vote of 
            the shareholders of both companies on September 29, 1994. 
            National Amusements, Inc., a closely held corporation
            which owns and operates nearly 850 movie screens in the
            U.S. and the U.K., is the parent company of Viacom Inc.

            ITT is a diversified, multinational company with 1993
            sales of $22.8 billion.  The company has operations in 61
            countries around the world and 110,000 employees,
            including over 3,000 in New York City.

            Cablevision Systems Corporation owns and operates cable
            television systems in 19 states serving 2.5 million
            subscribers of which more than 1.4 million are located in 
            the New York City tri-state area and through its Rainbow
            programming subsidiary owns interests in companies which
            produce and distribute American Movie Classics, Bravo,
            Romance Classics, eight regional SportsChannels in New
            York, Philadelphia, New England, Florida, Ohio, Chicago,
            San Francisco, Cincinnati, and Prism -- a sports and movie
            service in the Philadelphia area, The Prime Network,
            NewSport, News 12, MuchMusic and The Independent Film
            Channel, as well as Rainbow Advertising Sales Company, CNI
            and Rainbow Network Communications.

                                     #   #   #

            Contact:  Viacom Inc.
                      Carl Folta          Nancy Bushkin
                      212/258-6352        212/258-6362



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