
Never one not to jump on the bandwagon, I'd like to add The Groove Tube to our "Where Are They Now" series. The first R-rated movie I ever saw, I still think of it as one of the funniest and dirtiest (although a lot of the humor seems a bit naive by today's standards).
The Groove Tube is a compilation of sketches from Channel One, which, according to TV Guide was "the world's first television theater, a brash and irreverent enterprise in the East Village, New York's shabby hippie pleasure dome. Channel One offers a televised shock comparable to a bop on the head with a sock full of gravel." (of course, to us irreverent, shabby hippies from the East Village, that's a bit insulting.)
Along with Second City and Kentucky Fried Theater, Channel One (including a young Chevy Chase) was a precursor to Saturday Night Live and, in fact, his Weekend Update anchorman character came straight from Channel One.