FXX just released a new promo THE SIMPSONS, which comes to FXX on August 21, 2014 with a 12-day marathon of every Simpsons ever.
The Simpsons Marathon – Creation (Extended)
Description: 25 Seasons. 552 Episodes. 12 days. Not one moment of rest. The EVERY.SIMPSONS.EVER. marathon begins August 21st on FXX.