Movies from when we were kids

so i'm trying to remember (and i'm old, so...)
if we didn't see movies at the theater, where was it?
i vaguely remember 'Saturday Matinee Movies' or some such
Elvira for the schlock horror at night
but where else?
For some reason, they showed The Horse in the Gray Flannel Suit in school at an end-of-year assembly. And I remember first they called it "The Man in the Gray Flannel Suit" over the intercom and then corrected it later that day. I mean, I thought it was great and was probably one of the few actually watching the movie instead of goofing around but this was in middle school and not elementary school and I think it's a weird choice.