Frisco, Day 3: Sheila E. and Pete Escovido sit in; Dave shows off the 49ers shower curtain he has in the dressing room; Dave orders Rupert to harass people on the street; Dave invites a shaggy-looking guy in the audience (a professor at Stanford, no less) to take a shower during the show.
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Ready to Watch Late Show with David Letterman, Season 3, Episode 148?