Season 21

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Season 21

Season 22 ►

Season 21
Original Run	September 27, 2009 – May 23, 2010
No. of episodes	23
Previous season	20
Next season	22

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Season 21 is the twenty-first season of The Simpsons. Because of this season, The Simpsons pulled ahead of "Gunsmoke" as the longest running American primetime television series. It aired on September 27, 2009 and ended on May 23, 2010.

This is the first season of The Simpsons since Season 10 to have more than 22 episodes.

Episodes

Image	#	Original airdate	Prod. Code	Title	Title Reference
	1 - 2101	September 27, 2009	LABF13	"Homer the Whopper"	Home of the Whopper
	2 - 2102	October 4, 2009	LABF15	"Bart Gets a "Z""	Bart Gets an "F"
	3 - 2103	October 11, 2009	LABF16	"The Great Wife Hope"	The Great White Hope
	4 - 2104	October 18, 2009	LABF14	"Treehouse of Horror XX"	N/A
	5 - 2105	November 15, 2009	LABF17	"The Devil Wears Nada"	The Devil Wears Prada
	6 - 2106	November 22, 2009	LABF18	"Pranks and Greens"	Franks and Beans
	7 - 2107	November 29, 2009	LABF19	"Rednecks and Broomsticks"	Bedknobs and Broomsticks
	8 - 2108	December 13, 2009	MABF01	"O Brother, Where Bart Thou?"	O Brother, Where Art Thou
	9 - 2109	January 3, 2010	MABF02	"Thursdays with Abie"	Tuesdays with Morrie
	10 - 2110	January 10, 2010	LABF20	"Once Upon a Time in Springfield"	Once Upon a Time in America
	11 - 2111	January 31, 2010	MABF03	"Million Dollar Maybe"	Million Dollar Baby
	12 - 2112	February 14, 2010	MABF05	"Boy Meets Curl"	Boy Meets Girl
	13 - 2113	February 21, 2010	MABF06	"The Color Yellow"	The Color Purple
	14 - 2114	March 14, 2010	MABF04	"Postcards from the Wedge"	Postcards from the Edge
	15 - 2115	March 21, 2010	MABF07	"Stealing First Base"	N/A
	16 - 2116	March 28, 2010	MABF10	"The Greatest Story Ever D'ohed"	The Greatest Story Ever Told
	17 - 2117	April 11, 2010	MABF08	"American History X-cellent"	American History X
	18 - 2118	April 18, 2010	MABF09	"Chief of Hearts"	King of Hearts
	19 - 2119	April 25, 2010	MABF14	"The Squirt and the Whale"	The Squid and the Whale
	20 - 2120	May 2, 2010	MABF12	"To Surveil, with Love"	To Sir, with Love
	21 - 2121	May 9, 2010	MABF13	"Moe Letter Blues"	Mo' Better Blues
	22 - 2122	May 16, 2010	MABF11	"The Bob Next Door"	The Boy Next Door
	23 - 2123	May 23, 2010	MABF15	"Judge Me Tender"	Love Me Tender

Trivia

• This is the first "full" season to use all episodes in the 16:9 widescreen ratio.
• This is the first "full" season to use all episodes in the standard 4:3 ratio for full-screen prints. This is also the first "full" season to use the proper non-cropped Gracie Films logo, which is properly shown in the standard 4:3 ratio.
• This season is also part of the 20th anniversary of "The Simpsons".
• This is the last season having its episodes produced in the 2000s as the second half of Season 21 would be produced in 2010, marking this also the first season to be produced in the 2010s.
• This is the first season to have Kevin Michael Richardson in the voice cast, even though he was a guest star in the show at the time before he became an official voice cast member in the 2010s.
• This is the first season not to be released on DVD.