I highly recommend the purchase of this BluRay Set. The HD quality is awesome. The show is filmed with HD cameras and the show airs in HD but it depends on the consumer whether they have a HD TV to see the high quality picture. I own both the 3rd and now 4th seasons on BluRay. If you are wanting to get the best picture and sound I would recommend this version if you can spare the extra $15 over the DVD copy.
What's great about it: The brothers and their quest to stop evil. Has a balance of comedy and seriousness.
What's not so great: A couple episodes are fillers.