Banksy was credited with the opening couch gag for the 2010 The Simpsons episode “MoneyBart,” depicting people working in deplorable conditions and using endangered or mythical animals to make both the episodes cel-by-cel and the merchandise connected with the program. His name appears several times throughout the episode’s opening sequence, spray-painted on assorted walls and signs. Fox sanitised parts of the opening “for taste” and to make it less grim. In January 2011, Banksy published the original storyboard on his website. According to Banksy, the storyboard “led to delays, disputes over broadcast standards and a threatened walk out by the animation department.” Executive director Al Jean jokingly said, “This is what you get when you outsource.” Source: Wikipedia
Banksy unofficial 