My First Porn Movie

Does anyone remember when you had to actually go into a theater to see porn? I don't think that's been requirement for the past 25 years, but once upon a time you had to pay your money and sit in a dark room with strangers to see some XX/XY action. It was almost a rite of passage for some of us. You turned 18 (or 21 in some states), drank your first beer, and went to a porn movie.
My first real XXX double feature was Misty Beethoven/Score. Saw both of them at the old World Theater in Columbus, Ohio on a rainy afternoon in 1980. The World is no longer there, I think a gymnasium may be on the same site. But it was the place to go see skin flicks near OSU in those days.