Currently available on 4 streaming services.

Streaming, rent, or buy Magnum, P.I. – Season 6:

Currently you are able to watch "Magnum, P.I. - Season 6" streaming on The Roku Channel for free with ads or buy it as download on Apple TV, Fandango At Home, Amazon Video.

Cast

Tom Selleck
Thomas Magnum
John Hillerman
Jonathan Higgins
Roger E. Mosley
Terry "TC" Calvin
Larry Manetti
Rick Wright