Starring: Tom Selleck, Roger E. Mosley, John Hillerman, Larry Manetti
Squeeze Play - S4-E7
Character mistake: Misunderstanding which "Washington Senators" Mickey Dalrumple was referring to, Robin Masters says they went "out of existence in 1969." The Washington Senators ceased to exist with the 1971 season, before they relocated to become the Texas Rangers. (00:04:00)
Don't Eat the Snow in Hawaii - S1-E1
Continuity mistake: When Magnum drops the ring out of the envelope, nothing is near it as it's shaking. In the close up shot, it's next to keys. (00:44:20)
Mac: Time has little to do with infinity and jelly donuts.
Trivia: Tom Selleck is the only actor to appear in every episode of the show.