As of right now, Family Guy DVD sets are the best-selling TV DVD sets ever. Chappelle's Show is #2, Simpsons #3, and Seinfeld #4. However, with the release of season 4 yesterday, Seinfeld is likely to take over the #1 spot. If Fox would get off their ass about releasing Simpsons season sets, they could easily take #1. Screw the extras, just release the episodes, dammit.