Late Show with David Letterman: Mailbag: "What would you do if the world was coming to an end?" Dave admits he doesn't know much about this topic, so he introduces astrophysicist "Dr. Saul Perlm�tter" (Gerard), who announces that the world will end somewhat earlier than was previously thought; around Labor Day 2001, an eerie prediction.

Starring:

Alan Kalter, David Letterman, Paul Shaffer

Genre:

Comedy, Music, Talk-Show