My all time favorite science fiction TV show is probably Battlestar Galactica (along with Firefly). I'm currently, along with numerous other fans, awaiting for the 4th, and last season that's due to come next spring, and for the upcoming special, Razor, which will be released in November on the SciFi channel.
One of the cooler moments last spring during the finale was the use of a cover of Bob Dylan's All Along the Watchtower, used in the last couple of minutes of the finale. Lyrics were also used as dialog, which was really cool. The soundtrack is being released next week, on the 23rd. I can't wait to listen to the entire thing.
All Along the Watchtower (With Dialog) - BT4 & Cast Members