The Treehouse of Horror XXIV aired on the 25th season of The Simpsons, which began September 29, 2013, and ended on which date?
The Simpsons (season 25) "The Simpsons"' twenty-fifth season began airing on Fox on September 29, 2013 and ended on May 18, 2014.
Treehouse of Horror XXV "Treehouse of Horror XXV" is the fourth episode of the 26th season of "The Simpsons", the 25th episode in the "Treehouse of Horror" series of Halloween specials, and the 556th episode overall. It originally aired on the Fox network in the United States on October 19, 2014.