I used to not watch TV. When I was a teenager, the television was for: 1. Watching basketball. 2. Keeping my family occupied while I did more important things.
Alas, my downfall came when we moved into a flat with free cable. I resisted for the first year, but at some point I became addicted. Now I use it for the same kind of mindless entertainment everyone else does-- even when there is nothing on.
Anyway, so I started watching the CSIs when we went to Scotland last fall, and managed to get hooked on these police procederal dramas. But my new current favourite is Life, followed by NCIS. But really, I should just lose the TV.
Also, if you're not watching Life, you should start.