(S11E11) As much as I like to poke fun at the "Simpsons already did it" crowd for not realizing that everything has pretty much been done already, I must admit that I sometimes fall into that same mindset a little too easily.

Yes, the Simpsons did do an episode where Homer starts working out and becomes, not unlike Bill does in this episode, about half flabby and half muscular. Coincidentally, that Simpsons episode is actually titled "King of the Hill." However, that particular Simpsons episode was about Homer trying to win Bart's respect, whereas this episode of King of the Hill was about Bill obtaining a body never thought he could have, and becoming so self-centered he pushes all his friends away.