Late Show with David Letterman - Season 2 Episode 121 Afsnit 121
On the first Letterman show ever aired on this date, Bill Cosby, Tito Puente, and Dave climb a ladder up to the balcony, and Luke Perry does a science experiment in place of bumped guest Lee Marek.
- Genre: Talk, Comedy
- Studio: CBS
- Nøgleord: late-night show
- Cast: David Letterman, Paul Shaffer, Alan Kalter