Johnny Carson claims Dave Letterman won the Publisher's Clearing House sweepstakes' grand prize. But Ed McMahon always used to pitch the American Family Publishers sweepstakes. Whether Carson was trying to protect American Family Publishers or McMahon is anybody's guess.
Jim Carrey got bumped because of Johnny Carson's cameo.
Goodtimes Home Video released this show in a Late Night two-episode tape highlighting Johnny Carson. Preceding this 1991 episode was Carson's appearance on May 16, 1985.
Dave: On Nickelodeon, it's another episode of that popular Western, The Chronic-Fatigue Cowboy.
Actually, Nickelodeon did have a Western show of sorts, called Hey, Dude!