Lee Ain't Heavy, He's My Brother is the 21st episode of Season Four of Three's Company, and the 74th overall episode of the series. Directed by Dave Powers and co-written by Michael S. Baser and Kim Weiskopf, it first aired 26 February 1980 on ABC.
Summary[]
Jack's "perfect" older brother is in town for a visit, and Jack is less than happy. Lee Tripper was always first in everything; he has a great job, travels a lot and is handsome and sophisticated. When he arrives at the apartment, he asks Chrissy to be his date at a dinner in his honor. Jack worries, and when he opens the door and sees Lee and Chrissy kissing, becomes even more depressed. Ralph tries to cheer him up but only succeeds in depressing himself. That night Lee invites Jack and Chrissy to dinner. Jack spills wine on himself and the dessert on Lee, but Chrissy tells him she'd rather be with Jack any day. Jack is real; Lee thinks only of himself.