Kickboxer/Boxer/Actor Randall "Tex" Cobb made three appearances on Late Night, the second including a memorable skit on Viewer Mail. Here they are.

1. December 7, 1982. Eleven days after Cobb went all fifteen rounds with WBC's Heavyweight champion Larry Holmes and lost every one of them.

2. April 26, 1984. Viewer Mail, interview, and a promo. This comes from a pre-broadcast, pre-censored source. Certain words were muted when it aired.
The full Viewer Mail segment can be seen here:
   • Viewer Mail on Letterman, April 26, 1984  

3. January 7, 1987. Promotes the films "The Golden Child" and the soon-to-be-released "Critical Condition" (clip edited out due to copyright caution).