2010

All events that happened in 2010.

January

 * 3rd: "Thursdays with Abie" aired for the first time.
 * 10th: "Once Upon a Time in Springfield" aired for the first time.
 * 11th: The Simpsons: Access All Areas aired for the first time.
 * 12th: The Simpsons: Mischief & Mayhem aired for the first time. The Complete Twentieth Season is released on DVD for North America.
 * 13th: The Simpsons: Celebrity Friends aired for the first time.
 * 14th: The Simpsons 20th Anniversary Special – In 3-D! On Ice! aired for the first time.
 * 20th: The Complete Twentieth Season is released on DVD for Australia.
 * 31st: "Million Dollar Maybe" aired for the first time

February

 * 14th: "Boy Meets Curl" aired for the first time.
 * 21st: "The Color Yellow" aired for the first time.

March

 * 14th: "Postcards from the Wedge" aired for the first time.
 * 21st: "Stealing First Base" aired for the first time.
 * 28th: "The Greatest Story Ever D'ohed" aired for the first time.

April

 * 11th: "American History X-cellent" aired for the first time.
 * 16th: Daryl Gates, a guest star in the special Springfield's Most Wanted, died.
 * 18th: "Chief of Hearts" aired for the first time.
 * 21st: Ron Scalera, production manager, died.
 * 25th: "The Squirt and the Whale" aired for the first time.

May

 * 1st: Bongo Comics Free-For-All 2010 is released on Free Comic Book Day.
 * 2nd: "To Surveil with Love" aired for the first time.
 * 9th: "Moe Letter Blues" aired for the first time.
 * 16th: "The Bob Next Door" aired for the first time.
 * 23rd: "Judge Me Tender" aired for the first time. Season 21 finished.
 * 28th: Gary Coleman, actor and guest star, died.

June

 * 12th: Al Williamson, comic artist, died.

July

 * 26th: Ben Keith, a steel guitar player, died.

August

 * 24th: The Complete Thirteenth Season is released on DVD for North America.

September

 * 3rd: Robert Schimmel, comedian and guest star, died.
 * 10th: The Simpsons SU2C PSA aired for the first time.
 * 20th: The Complete Thirteenth Season is released on DVD for the United Kingdom.
 * 26th: Season 22 started. "Elementary School Musical" aired for the first time.
 * 30th: Simpsons World The Ultimate Episode Guide: Seasons 1-20 was released in the United Kingdom.

October

 * 3rd: "Loan-a Lisa" aired for the first time.
 * 10th: "MoneyBart" aired for the first time.
 * 26th: Simpsons World The Ultimate Episode Guide: Seasons 1-20 was released in the United States.

November

 * 7th: "Treehouse of Horror XXI" aired for the first time.
 * 11th: Season 23 was announced.
 * 14th: "Lisa Simpson, This Isn't Your Life" aired for the first time.
 * 21st: "The Fool Monty" aired for the first time.
 * 28th: "How Munched Is That Birdie in the Window?" aired for the first time.

December

 * 1st: The Complete Thirteenth Season is released on DVD for Australia.
 * 5th: "The Fight Before Christmas" aired for the first time.
 * 12th: "Donnie Fatso" aired for the first time.