Season 19, Episode 166 Late Show With David Letterman
First Aired: July 24, 2012
Zach Galifianakis; former U.S. Army sergeant Valerie Brown. Also: Allen Stone performs.
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- Premiered: August 30, 1993
- Rating: TV-PG
- Premise: Late-night comedy and talk with a sharply irreverent host who prowls New York's Ed Sullivan Theater, where the show is taped, and its surrounding neighborhood in an endless quest to amuse viewers and his studio audience. Regular segments include Dave's Top… (more)