I know that I've told this story several times here already, so feel free to skip it if you want to.
I saw the movie, which I sort of liked, but that's another story, other than to say that that was my previous exposure to "Buffy The Vampire Slayer." With that for reference, I was somewhat underwhelmed when I found out that it was a series, and never bothered to watch it. Then, my nephew, who was a fan, asked me to tape an episode for him, since he was going to be out of town. That episode was "Once More With Feeling," and I was hooked. Not surprisingly, my two favorite characters, and what I saw as the most interesting relationship that I saw, beginning with that episode, and remaining to this day, were Buffy and Spike. To me, they belonged together like bacon and eggs. Later, when I started watching the syndicated series in the afternoons after work, Angel was just "that other vampire hanging around Spike's girl." I saw him that way then, and despite trying to get that image out of my head ever since (honestly!) I still can't see him any other way.
Anyhow, my point is that, the only reason that I ever started watching the show was because of another fan, and I only watched it then as a favor to him. After that, I watched only as a guilty pleasure, and never mentioned it to anyone. That's the closest to "hype" that I can remember being aware of before I started watching. After I became a fan, I discovered that I was only one of many.