The Cosby Show
Episode Name: If the Dress Fits, Wear It
Episode Overview: Clair secretly goes on a crash diet and exercise program to lose five pounds in a week so she can fit into a dress. Appearance by Debbie Allen; voice-over by Ahmad Rashād (Phylicia Rashād's sister and husband).
Episode Number: 10
Episode Season: 5
Episode First Aired: 1988-12-08