Tom Selleck's crime drama kicked off its eight-season CBS run on Dec. 11, 1980. As TVLine notes, "coincidentally, there is a show called (Magnum P.I.) (but sans comma!) airing on CBS tonight. What's more, Tom Selleck stars in a show that airs after it!"
TOPICS: Magnum, P.I. (1980 series), Magnum P.I. (2018 series), Tom Selleck, Retro TV