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The Thoroughbred is the sixteenth episode of the third season of Matlock, and the sixty-fifth episode overall.
Guest Stars: Don Swayze (Tommy Jenks), Claude Akins (Sam Taylor), June Chadwick (Patricia Taylor), Lonny Chapman (John Donovan), Kenneth J. McGregor (Clint Purdy), Ned Bellamy (Motel Manager), Susan Walden (Sandra Taylor), Chris Anastasio (Sgt. Charlie), Nigel Gibbs (Policeman), Alan Koss (Ed), Karl Anthony Smith (Manager)
Matlock comes to the aid of a mentally retarded stable boy accused of killing the daughter of his boss.