I spent more Friday and Saturday nights at the Tivoli in St. Louis at RHPS showings in my teen years than I can count. Quite literally, I lost track somewhere around 80 showings. (Not all at the Tivoli, but most.)

The first time I went to see it I was 16, I think, and being able to shout at the screen, throw toast and rice, generally just be loud and roudy as a teen, was fantastic.

Finally took my daughter (she's 20) to see it about some months ago during an anniversary screening... I got shushed by somebody two rows ahead for yelling a few lines. Nobody in the theatre knew about audience participation. Still fairly bummed about that. She'll probably never get the full audience participation experience, and that's sad.

RHPS was not my introduction to Tim Curry, though: Clue was. But I didn't put the two together until seeing Clue again after seeing RHPS a few times.