Mall:Infobox Simpsons säsong 21
Utseende
|- | style="background: #fada00; font-size: 110%;" align="center" colspan="2" | 27 september 2009 – 23 maj 2010 |- | style="font-size: 100%;" align="left" colspan="2" |
- "Homer the Whopper"
- "Bart Gets a 'Z'"
- "The Great Wife Hope"
- "Treehouse of Horror XX"
- "The Devil Wears Nada"
- "Pranks and Greens"
- "Rednecks and Broomsticks"
- "O Brother, Where Bart Thou?"
- "Thursdays with Abie"
- "Once Upon a Time in Springfield"
- "Million Dollar Maybe"
- "Boy Meets Curl"
- "The Color Yellow"
- "Postcards from the Wedge"
- "Stealing First Base"
- "The Greatest Story Ever D'ohed"
- "American History X-cellent"
- "Chief of Hearts"
- "The Squirt and the Whale"
- "To Surveil with Love"
- "Moe Letter Blues"
- "The Bob Next Door"
- "Judge Me Tender"