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HE'S STILL A DRAW
David Letterman's moving tribute to Johnny Carson on Monday's Late Show attracted the show's largest audience in almost two years. In related news, guest books signed by some of Carson's famous Tonight Show guests are being auctioned off on eBay. The relics, containing signatures of such celebs as Groucho Marx, Paul Newman and Arnold Palmer, were rescued from the trash by a former Tonight Show staffer.