Puppets Who Kill (2002)

Season 2: Episode 10

Rocko learns he's down to 2% of lung capacity and needs a transplant to survive but he's such a scumbag that no one's willing to donate them to him and he doesn't have the money to buy a new set. Bill's sent to a TV quiz show to earn the money but it turns out his genius at home was actually from cheating and in he's way over his head.