Magnum, P.I. is an American television series produced by Universal Television, and set in Hawaii. The show originally aired for twelve seasons from 1980 to 1989, and continued in reruns.
The show features a fictional state private investigator unit run by Thomas Magnum, played by actor Tom Selleck in the original series, and Jay Hernandez in the modern remake. The modern remake started airing in 2018, using the original character names and theme music.