![](https://image.tmdb.org/t/p/w185/7dwM8AKyQfauguoQbI1MIlHinLM.jpg)
789.076 Views
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 Perlmütter" (Gerard), who announces that the world will end somewhat earlier than was previously thought; around Labor Day 2001, an eerie prediction.
First Air Date : Aug 30, 1993
Last Air date : May 20, 2015
Episode : 4252 Episode
Season : 22 Season
Runtime: 63:60 minutes
Studio: CBS
Country: United States of America
Crew: David Letterman (Writer)