Been watching the old episodes on TNT and it's amazing to me just how good this show was early on, and how much of the mythos of season 5 was laid out during the first season and a half.
I think that's why I always liked this show more than Lost: it was clear they had a plan and they stuck to it. And it's had consistent quality throughout.
And I have no problem at all restating my belief that this show is about 1000x better than True Blood (which I also watch every week, not slamming it when I say that). It's easily one of the best paranormal-related shows ever on TV, if not THE best. Shame it's on CW, although it probably wouldn't have made it 6 years on a major network.