I love this show, and I had always wanted to own the whole series. I started collecting an extensive blu ray selection, and it was only natural to buy this series in an upgraded format. Little did I know, though, that only seasons 1 & 2 are available to buy on blu ray INDIVIDUALLY. If you want the whole series on blu ray, YOU MUST buy the complete box set. No word as of this review if the later seasons will be released individually. Had I known that, I wouldn't have wasted my money buying this single season. Do buy the box set though, it's worth it if you're a fan of the show.