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.
In the Name of the Grandfather "In the Name of the Grandfather" is the fourteenth episode of the twentieth season of "The Simpsons". It first aired on Sky1 on St. Patrick's Day, March 17, 2009 and aired on the Fox network in the United States on March 22, 2009. It was the first episode of the show to premiere in Europe before airing on Fox. In the episode, the Simpsons buy a new hot tub and spend so much time relaxing in it that they neglect Abraham "Grampa" Simpson. Homer decides to make it up to Grampa by helping him do one thing he wants to do. Grampa reminisces about O'Flanagan's pub in Ireland where he once had the best night of his life so the Simpsons travel there. Marge, Bart and Lisa visit various Irish landmarks while Homer and Grampa buy O'Flanagan's during a night of binge drinking and soon discover that pubs are no longer popular in Ireland.