Late Night Talk Shows 
.... "
Letterman CBS Move Pulls Beer, Auto Ads." Advertising Age (January 18, 1993), 1. Mandese, Joe. "Late Night Legacy." Advertising Age (April 20, 1992), 44. ....
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Problems at CBS
.... More recently, though,
Letterman's ratings have been slipping, in part again because
CBS does not have the number of affiliates NBC has. ....
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NBC & Its Operations
NBC, along with the Columbia Broadcasting System (
CBS) and the American Broadcasting .... the company suffered the loss of Johnny Carson and David
Letterman in the ....
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The National Broadcasting Company
.... when the company suffered the loss of Johnny Carson and David
Letterman in the .... be associated with the now-successful network, including eight from
CBS and one ....
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