Whatever Happened to Carol Harmony? - S2-E23
Continuity mistake: After Pete and Mac chase the guard dogs out, the mansion's double gates close themselves between one shot and the next. (00:23:00)
Switch (1975)
1 continuity mistake in Whatever Happened to Carol Harmony? - chronological order
Starring: Robert Wagner, Eddie Albert, Sharon Gless, Charlie Callas
Ain't Nobody Here Named Barney - S1-E17
Continuity mistake: The murderer places the combination lock on the trailer door upside down, with the dial facing in. In the next shot, the lock has flipped itself over and now has the dial facing out. (00:29:20)
Trivia: In an homage to the king of Hawaii-based cop shows, Hawaii Five-O, Don Ho tells MacBride and Ryan at the end that if they ever break up his night club again, he's going to call McGarrett. Ryan gives MacBride a baffled look and just before the freeze-frame, queries, "Who's McGarrett?"