Haven is a show I recently got into, and I instantly fell in love with this theme. It has such pretty instrumentals and that plus the pretty historical elements make this a great theme.
04. The Big Bang Theory
This is a theme that is impossible to NOT sing along to. The song is so quirky and catchy and along with the (nerdy) images, I think it sums up the show nicely.
03. Parks and Recreation
This song! I just love it so much, and I'm not even sure why. I like that the music is kind of synchronized to the images.
The electronic sounding music mixed with the ever changing series of clips makes this an amazing theme. I especially love that the theme is different for every episode.
01. Rizzoli & Isles
This is my favorite because I think it's absolutely PERFECT. The music is Irish sounding and so Boston-like, and I love the stock images that fit so well. I love it so much that this theme is even my ringtone.