Season 21
23 episodes · September 2009 – May 2010
| Code | Title | Aired | Live posts | Retro posts | Usenet score |
|---|---|---|---|---|---|
| S21E01 | Homer the Whopper | Sep 27, 2009 | 14 | 0 | — |
| S21E02 | Bart Gets a 'Z' | Oct 4, 2009 | 13 | 4 | — |
| S21E03 | The Great Wife Hope | Oct 11, 2009 | 23 | 0 | — |
| S21E04 | Treehouse of Horror XX | Oct 18, 2009 | 7 | 0 | — |
| S21E05 | The Devil Wears Nada | Nov 15, 2009 | 9 | 0 | — |
| S21E06 | Pranks and Greens | Nov 22, 2009 | 8 | 2 | — |
| S21E07 | Rednecks and Broomsticks | Nov 29, 2009 | 16 | 1 | — |
| S21E08 | O Brother, Where Bart Thou? | Dec 13, 2009 | 10 | 0 | — |
| S21E09 | Thursdays with Abie | Jan 3, 2010 | 11 | 5 | — |
| S21E10 | Once Upon a Time in Springfield | Jan 10, 2010 | 16 | 0 | — |
| S21E11 | Million Dollar Maybe | Jan 31, 2010 | 9 | 1 | — |
| S21E12 | Boy Meets Curl | Feb 14, 2010 | 21 | 0 | — |
| S21E13 | The Color Yellow | Feb 21, 2010 | 13 | 0 | — |
| S21E14 | Postcards from the Wedge | Mar 14, 2010 | 2 | 0 | — |
| S21E15 | Stealing First Base | Mar 21, 2010 | 13 | 0 | — |
| S21E16 | The Greatest Story Ever Doh'd | Mar 28, 2010 | 0 | 0 | — |
| S21E17 | American History X-cellent | Apr 11, 2010 | 9 | 7 | — |
| S21E18 | Chief of Hearts | Apr 18, 2010 | 12 | 0 | — |
| S21E19 | The Squirt and the Whale | Apr 25, 2010 | 33 | 0 | — |
| S21E20 | To Surveil with Love | May 2, 2010 | 14 | 0 | — |
| S21E21 | Moe Letter Blues | May 9, 2010 | 12 | 0 | — |
| S21E22 | The Bob Next Door | May 16, 2010 | 11 | 3 | — |
| S21E23 | Judge Me Tender | May 23, 2010 | 6 | 0 | — |