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.
Love Is in the N2-O2-Ar-CO2-Ne-He-CH4 "Love Is in the N2-O2-Ar-CO2-Ne-He-CH4" is the thirteenth episode of the twenty-seventh season of the animated television series "The Simpsons", and the 587th episode of the series overall. It aired in the United States on Fox on February 14, 2016.