The Simpsons: The Complete Twentieth Season [Blu-ray] (2010) for $18.49

In South Park's 86th episode, Butters, a.k.a. Professor Chaos, concocts various schemes to wreak havoc but abandons each when he learns that ""The Simpsons already did it."" By the end of its historic 20th season, The Simpsons comprised more than 440 episodes, so imagine the challenge for the writers to come up with something they haven't already done or resist the temptation to make every episode a clip show.