I don't watch TV much....my brother likes to have it on all the time though.
When I do watch TV, it's mostly sci-fi stuff or comedy. And by sci-fi I don't mean horror movies, I mean science fiction shows; Eureka, Warehouse 13, Star Trek, Stargate, etc. stuff like that. Also love the Universe series on Discovery Channel. Sometimes I watch the occasional movie. Everything else on TV; cartoons (newer cartoons anyway), lawyer/doctor/cop shows, reality shows, wrestling, etc. pretty much just plain suck, IMO.
To be honest, it annoys me that my brother insists on having the TV on all the time.