Late Show with David Letterman
Late Show with David Letterman
Show #1218 (6x153)
Air date: May 14, 1999
With tonight's audience being from the City of Brotherly Love, Biff heads to Philly to get in training a la Rocky. For his efforts, he is given a medal by Philadelphia Mayor Edward Rendell and Sylvester Stallone's brother Frank.
- Premiered: Aug 1993
- Episodes: 4205
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