I'm about a year late on getting into this show, but I just started watching the first season of Terminator: The Sarah Connor Chronicles on DVD. I don't know how I slept through the first season and a half, but holy crap is this good. I typically don't count on Fox to produce anything much of value outside The Simpsons (and even that is past it's glory days) but this actually has good production values/special effects, an interesting story line and enough drama to keep things interesting. Also, Summer Glau.
I still have about 20 episodes left to go to catch up to the current season 2 airings so I guess I have my work cut out for me. If you dig sci-fi and/or the Terminator franchise, and you're looking to kill some time before T4 then you want to check this out. (Or perhaps, if you haven't been living in 1998 as I apparently have, then you're already aware of it - in which case, why didn't you mention anything?)