Stupid Pet Tricks on Letterman, March 29, 1984
10:35
Stupid Pet Tricks, 3/9/1995. The Late Show With David Letterman.
9:52
Stupid Pet Tricks: The Beer-Buying Dog, A Stupid Cockroach Trick And More | Letterman
9:12
Stupid Human Tricks on Letterman, May 26, 1986
13:52
First Stupid Pet Tricks on The David Letterman Show, June 26, 1980
14:25
Top 10 Most Memorable David Letterman Moments
6:55
Stupid Pet Tricks.. One Real Smart Dog and One That Tries Hard:)
2:24:23
Jack Hanna Collection on Letterman, Part 11 of 11: 2013-2015
7:58