Since we don't have any TV stations at home, we watch nearly all of our TV at least a few months after it originally airs. (We make an exception for Doctor Who, which we buy as individual episodes, because even that is cheaper than cable.) So we watch stuff on Netflix whenever it's available.
Lately, we've been on a tear through Buffy. Jeremy has watched the last two seasons, but he never watched the early stuff. And I watched one episode total when it aired, because my sister was a fan and she tried to get me to like it. (It didn't work.)
The problem, though, is that when you watch something years after the fact, there's an inevitability of spoilers. Case in point, we just finished season 2 the other day. For those who don't remember, that's the one where Buffy sends Angel to hell. But no, it's not really a spoiler, because for anyone who is marginally aware of TV, obviously Angel comes back, because he gets his spin-off show in a couple more seasons. :)
But I wonder, from my detached viewpoint, how fans of the show must have reacted to that. OMG, they killed Angel!!!! And then they had to wait until the next season to find out what happened next.
I have a bad enough time with suspense between weeks on Doctor Who. I'm SO glad I'm not having to deal with that for multiple shows. :)
(For the record, it doesn't take long for Angel to come back. I think he's in several episodes (in dream sequences) before he comes back. I wonder how much of that was angry fangirls hating on Joss for taking Angel away. :) )