Easy one. It was an FF/M, or FFF/M, depending on how you look at it, that aired on the sitcom "Mork and Mindy," which ran in the late '70s and early '80s. I was born in 1978, so I didn't really see the show until reruns were aired on Nick at Nite in the early '90s. On one episode, Mork, who was played by a young Robin Williams, was captured by three female "aliens." These aliens were played by three HOT women, two of whom were Playboy models, I think, and one of whom was a young Raquel Welch. For those who think Mila Kunis or Megan Fox is hot today, Raquel Welch was way hotter back in the '60s and '70s if you watch old movies and TV shows. Anyway, Raquel Welch was the leader of the hot female aliens, and they take Mork aboard their ship to torture him in order to make him reveal information about Earth. They're all wearing hot skimpy space suits, and they make Mork strip down to his underwear, at which point one of the girls holds his arms back and the other one tickles him while Raquel Welch supervises and directs. The tickling only lasted for a few seconds but it was basically the sort of scenario we see in tickling videos all the time now, just very brief and without any forced orgasms (LOL). I still wonder who came up with the idea. Clearly this was before tickling fetish videos started coming out, but I have always wondered whether one of the writers was "one of us" when he came up with that scene. (Also, there was another episode of the same show where Mork is tickled by a young Morgan Fairchild, which also makes me think that someone involved with that show liked the concept of women tickling men.)