During ""Campaign 2000,"" Maria fills in for Rob, who's too busy working on the NBC pilot Ed; Biff presents the winning contestant of tonight's ""Beat the Clock"" with the home version of the game (a checkerboard); ""Phil Carmichael"" of CBS Promotions (Bill DeLace) does a presentation on ratings stunts.
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Ready to Watch Late Show with David Letterman, Season 7, Episode 106?