TV Show Soundtracks

Do you ever watch shows on tv, series...and just LOVE the music & songs they play? Like tonight, I was watching Las Vegas & just now Ghost Whisperer...and they play the greatest songs, I know you can find out who they are (at least I think you can). Wish somebody didn't take our ipod or we could find it (still think someone took it GRR!)...so I could load some of these songs on to it & enjoy them more than just the bit on a show. Wonder if the network ever comes out with a top songs soundtrack for all their shows?