The association's members, which include AOL Time Warner, the Tribune Company and Viacom, account for about two-thirds of syndicated billings.

By May, the Paramount board was presented with possible merger scenarios that included Tele-Communications Inc., Turner Broadcasting and Viacom.

Clients included DoubleClick, EyeBlaster, VIewPoint, Viacom and advertising agencies.

Other current tenants include New York Times Television and Viacom.

It serves a list of clients that include Viacom, Yahoo, and the Canadian television channel The Sports Network, and is a partner with United Press International.

Over the years, his firm's corporate clients have included Enron, Viacom, Verizon Wireless, the Atlantic Richfield Company and trade groups representing health insurers and the recording industry.

Today's office tenants include Viacom, China Central Television, Yahoo, and Pillsbury Winthrop Shaw Pittman.

A lot of interest was generated by the sale which included RTL, Hallmark Channel, ITV, Time Warner and Viacom.

The firms' portfolio, currently worth more than $250 million, includes Lin Broadcasting, Walt Disney, Philip Morris and Viacom, Mr. Mark said.

Other customers include Chevron, Viacom, JPMorgan, Comcast and Airbus.