Skinner's Sense of Snow
The episode's director, Lance Kramer, wanted the animators of the episode to watch a Cieque du Soleil show. The animators did not watch one. Mike Scully thought that the animators did a great job on animating the circus show. The episode is set in the winter. This made it harder for animators to animate than it is for other episodes. Kramer said that "It just adds another element". He shows this by talking about episodes that are set in winter: