Magnum P.I. (1980-88). Maximum Moustache.

https://youtu.be/fUI_VAOtrqY

Stam Fine Reviews looks at the '80s classic Magnum, P.I. Thomas Magnum (Tom Selleck) was a private investigator based on the island of Oahu in Hawaii. Magnum lived in a guesthouse on the estate of a famous author, Robin Masters, all the while while under the watchful eye of the estate manager, Higgins (John Hillerman). Magnum often leans on his war buddies T.C. (Roger E. Mosley) and Rick (Larry Manetti) for help in his detective work.

Created by Glen A. Larson and Donald P. Bellisario, Magnum, P.I. ran for eight seasons between 1980 and 1988 and a remake series ran for five seasons. It's the show where a guy in a baseball cap drives someone else's Ferrari around Hawaii.