Season 21
Episodes
1 Homer the Whopper Sep 27, 2009 
2 Bart Gets a 'Z' Oct 4, 2009 
3 The Great Wife Hope Oct 11, 2009 
4 Treehouse of Horror XX Oct 18, 2009 
5 The Devil Wears Nada Nov 15, 2009 
6 Pranks and Greens Nov 22, 2009 
7 Rednecks and Broomsticks Nov 29, 2009 
8 Oh Brother, Where Bart Thou? Dec 13, 2009 
9 Thursdays with Abie Jan 3, 2010 
10 Once Upon a Time in Springfield Jan 10, 2010 
11 Million Dollar Maybe Jan 31, 2010 
12 Boy Meets Curl Feb 14, 2010 
13 The Color Yellow Feb 21, 2010 
14 Postcards from the Wedge Mar 14, 2010 
15 Stealing First Base Mar 21, 2010 
16 The Greatest Story Ever D'ohed Mar 28, 2010 
17 American History X-cellent Apr 11, 2010 
18 Chief of Hearts Apr 18, 2010 
19 The Squirt and the Whale Apr 25, 2010 
20 To Surveil with Love May 2, 2010 
21 Moe Letter Blues May 9, 2010 
22 The Bob Next Door May 16, 2010 
23 Judge Me Tender May 23, 2010