Viewer Mail for Other Shows on Letterman, December 22, 1983

Viewer Mail on Letterman August 14, 1986

Viewer Mail on Letterman, February 26, 1988

The Dean Martin Celebrity Roasts: Muhammad Ali - Season 1 Episode 12 (2/19/76)

Stupid Pet Tricks, 3/9/1995. The Late Show With David Letterman.

The First Episode Of "Late Night With Conan O'Brien" | Late Night with Conan O’Brien

Viewer Mail, Final Countdown Calendar on Letterman, December 6, 1984

Don Rickles on Letterman w/ Denzel Washington 2008

Viewer Mail on Letterman, September 12, 1985

Norm Macdonald Compilation

Viewer Mail on Letterman, June 30, 1989

Viewer Mail on Letterman, May 1, 1986

Viewer Mail on Letterman, September 9, 1988

Norm Macdonald on Late Night September 23, 1999

(Friars Roast: Don Rickles) Johnny Carson, Milton Berle 1970

Craig Ferguson Seducing Hottest Celebrities In Hollywood Part 2

Jack Hanna Bitten by a Beaver - David Letterman December 1988

Viewer Mail: Chris Elliott's Conspiracy Guy Sets The Record Straight | Letterman

Robin Williams Makes an Insane First Appearance | Carson Tonight Show

Viewer Mail on Letterman, July 17, 1987

Norm Macdonald Tells The Most Convoluted Joke Ever - CONAN on TBS