Beginning at 10 a.m. on Thursday, August 21, FXX will begin airing all 552 episodes of the hit animated series "The Simpsons" back-to-back for 12 straight days. Fans of Springfield's favorite family can watch the FXX live stream of the marathon with XFINITY TV by clicking here
In celebration of this epic stunt, keep clicking to check out the 15 best "Simpsons" episodes of all time, and find out when they're airing during the marathon. —XFINITY Entertainment Staff
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