Hmmm... I think it did, actually. I remember HBO debuted around the late 70s... holy smokes!
Wikipedia, that source of endless truth, states that it actually started in 1965, and first became HBO in 1972.
I remember my dad had ON-TV, which was one of the first pay channels available to your house. Some good stuff, some sleazy stuff... don't know what happened to it, other than disappearing.
*edit* Wow!
Wikipedia even had records of On-TV... and that was back in 1979...