I've seen Buffy, I just didn't like it, which, for buffy-fans, is a far worse offense than having never seen it. I watched Angel for a bit too, same problem.

I later learned, of course, that I just REALLY hate vampires - so that was probably my problem with Buffy. (Though, in fairness, I do remember enjoying the Buffy movie that came out before the TV show...not sure if I'd enjoy it if I saw it again though.)