Showdown - Part 1
Season 1, Episode 21
Air date 24 March 1983
Written by Glen Charles and Les Charles
Directed by James Burrows
Episode guide
Someone Single, Someone Blue
Showdown - Part 2
Sam's brother Derek shows up to Cheers and instantly has everybody admiring his talents and accomplishments... including Diane. Sam immediately feels inferior to his brother, much like he used to when the two were growing up.

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