I'm kind of hoping Sony will re-release the entire series in Blu-ray format soon. Amazon has an auto-notify feature for when it becomes available, so I think it would be awesome to have individual season sets and a PKW one.
Sony? I didn't think they had the rights to the show...
Come to think of it, who does have the rights? Syfy and the Jim Henson Company made it, but who handled the distribution side of things?