December

What happened in December over the years.

4th

 * 2011 - "The Ten-Per-Cent Solution" originally aired.

5th

 * 1991 - "Burns Verkaufen der Kraftwerk" originally aired.

6th

 * 1990 - "Bart the Daredevil" originally aired.

7th

 * 2008 - The Burns and the Bees originally aired.

10th

 * 2006 - The Haw-Hawed Couple originally aired.

11th

 * 2011 - "Holidays of Future Passed" originally aired.

13th

 * 2005 - The Complete Seventh Season released in Region 1

16th

 * 2007 - Eternal Moonshine of the Simpson Mind originally aired.

17th

 * 1989 - "Simpsons Roasting on an Open Fire" originally aired.
 * 2006 - "Kill Gil: Vols. 1 & 2" originally aired.

20th

 * 1990 - "Itchy & Scratchy & Marge" originally aired.

21st

 * 2004 - The Complete Fifth Season released in Region 1

26th

 * 1991 - "I Married Marge" originally aired.