Magnum P.I.

IMDb: Magnum P.I.
Cast biographies, crew details, user comments, quotes, trivia, and production information.
http://www.imdb.com/title/tt0080240/

Jump the Shark: Magnum, P.I.
User comments on when the show reached its peak.
http://www.jumptheshark.com/topic/magnum-pi-general-comments/1232

Magnum Mania!
Articles, audio clips, episode guide, cast information, trivia, video clips, photograph gallery, and message boards.
http://magnum-mania.com/

Museum TV: Magnum, P.I.
Show overview and history as well as commentary.
http://www.museum.tv/archives/etv/M/htmlM/magnumpi/magnumpi.htm

Yahoo! Groups: Magnum P.I.
Show, cast, character, and episode discussion. [Yahoo! registration required.]
http://tv.groups.yahoo.com/group/Magnum_PI/