I just rented the tv series The 4400 recently and have really enjoyed it (just finished watching episode 5). I remember when it was on, but never got the chance to check it out.
Anyways, it made me think of some other shows that I liked that got canceled after only a season, maybe two. Here are a few of my favorites, what are some of yours?
Jericho - still hearing rumors of a possible movie.
Invasion - a series that started off well ratings-wise, but was completely mismanaged, IMO.
Firefly - I love science-fiction, great writing, great acting...never get tired of watching.