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.
Family Guy (season 14) "Family Guy"'s fourteenth season premiered on Fox in the United States on September 27, 2015, and ended on May 22, 2016. The season contained 20 episodes.