New favorite show alert: The Sarah Connor Chronicles.
A TV show based on the Terminator movie franchise. So far, it's at episode three, but I think it would be easy to catch up.
In a nutshell: the pilot was set about two years after the second movie. A bad terminator shows up, a good terminator saves them and Sarah, John, and the new terminator (Summer Glau of Firefly) jump forward to 2007. Good terminator explains that movie two just changed details of Judgment Day but didn't stop it (as we saw in movie three.)
Did you like the movies? Then you'll like this show. I enjoyed the acting, the plotting, and the adventure. I especially liked how it tries to maintain continuity with the three films (tho figuring out the John Connor timeline can be a wee bit headache inducing.) Check out the official website, which has past episodes.
Didn't watch the movies? Arg. How to explain. It's the end of the world as we know it...in a couple of years. In man v machine, machines win, and John Connor leads the resistance to defeat the machines. The machines then keep sending terminator cyborg machines back in time to kill John Connor; in movie one, they tried to kill his mother before John was born, but then John sent someone back in time to save his mom, and in turns out the person he sends back ends up being his dad.
In movie 2, a new bad terminator is sent back in time to kill a young John (he's about 12), and a reprogrammed terminator is also sent back to save John, and John and his mom end up deciding to stop the machine takeover before it happens by blowing up the company responsible for creating the machines. In movie 3, a grown up John is caught again between a good and a bad terminator, and finds out he only delayed Judgment Day.
And now the tv series, set between movies 2 and 3, but because of the time jump, it's basically a new timeline that has nothing to do with the movie franchise.
Does this not make sense to you? Then this isn't a show for you.
But if it does make sense... well, duh, how could you have not already watched the films? Please.
Edited to add:
A look at the various Terminator timelines. Yeah, it's confusing.