Biggest disappointment: the sixth DVD has a huge disclaimer about how the views of the executive producer on the commentary track in no way represent the views of 20th Century Fox. In reality, the comments are utterly innocuous: he says that they didn't think this ending would surprise enough viewers, so they did another ending. BOOOOOORING
Second biggest disappointment with mitigating factors: Realizing that we're already up to episode 10 of the second season. Briefly disappointed, I soon moved on to 'don't care' - after all, a grainy, MPEG artifact-ridden DirecTiVo in fake widescreen looks like shit, but the eventual DVD release in anamorphic widescreen will look a lot better - and I don't have to see any ads to boot!