Battlestar had the best music I've ever seen on television. I'm not really sure I've heard of anyone in this community remixing TV music on a large scale (besides anime), but I would like to agree completely with this n00b that it would be fantastically worthwhile to listen to some of Bear McCreary's music and consider whether it could be feasibly arranged in OCR's style.
Examples:
(a cover of all along the watchtower arranged specifically for the show)
McCreary, the composer worked with several leitmotifs throughout the series. Several of his songs were effectively arrangements of what he already did... in a way very similar to the extremely "liberal" tracks on OCR. Again, I highly recommend him.