We have a brand new addiction at my house -- HEROES. This is some of the best TV I have EVER seen. We bought Season 1 on DVD, and have been watching it in 3-4 episode sets. Even if you are not a "TV person", this is worth a look. And if you like comic books, sci-fi, fantasy, mysteries... I think you'll love this. You definitely need to see all the episodes though, and in order. The show isn't linear, so some episodes would make no sense whatsoever, unless you had seen the previous ones.
Hiro Nakamura is one of my favorite characters of all time, all genres.
Watch it, and tell me what you think.