Magnum P.I. is a TV show on American national television from CBS with an average rating of 3.4 stars by WatchTVOnDemand.com's visitors. We have 11 episodes of Magnum P.I. in our archive. The first episode of Magnum P.I. was broadcast in January, 2019. Did you miss an episode of Magnum P.I. but don't you wan't that to happen in the future? Please set an alarm and add Magnum P.I. to your favorites, so we can remind you by email when there's a new episode available to watch. Completely free: handy!