Late Show with David Letterman
Ray Romano, Avril Lavigne
E14 Sep 9, 2004 TV-PG
Biff spends the day at New York-Presbyterian Hospital with Dr. Lou Arrone; an educational segment with Alan and an animated rodent goes awry; Ray Romano talks about the final season of ""Everybody Loves Raymond;"" Avril Lavigne performs ""My Happy Ending.""
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