The original show was after my time, I didn't watch it. I was in my early teens when it started, FWIW. I was aware of its existence and that it was tied into a toy line, that's about it. Had no interest in the movies. I only know the name Optimus Prime because I've seen it come up so much in BBS discussions. Beyond that, I'd have to fall back on, "There's one that turns into a semi truck, right?"