Don't know the name of this TV show...help?

About 2-3 years ago, I was in college and started watching a show on cable with my room mate. It was really weird, but kind of cool. I think the premise was that the main character was the son of the devil, or maybe just a demon. The show was on USA - I'm almost positive, because I feel like we watched Monk later. If it wasn't USA, then it MIGHT have been the WB, CW or one of those local-y type stations, but I could be wrong.