When did the season of "The Simpsons", that contains the episode "Barthood", begin airing in the United States?
Barthood: "Barthood" is the ninth episode of the twenty-seventh season of the animated television series "The Simpsons", and the 583rd episode of the series overall. The Simpsons (season 27): "The Simpsons"' twenty-seventh season began airing on Fox in the United States on September 27, 2015, and ended on May 22, 2016.
September 27, 2015