When did The Simpsons Season 21 Episode 22 air?
The Simpsons Season 21 Episode 22 aired on May 16, 2010 at 8 PM ET.


Just a product of society that's lost its good manners.
Set in Springfield, the average American town, the show focuses on the antics and everyday adventures of the Simpson family; Homer, Marge, Bart, Lisa and Maggie, as well as a virtual cast of thousands. Since the beginning, the series has been a pop culture icon, attracting hundreds of celebrities to guest star. The show has also made name for itself in its fearless satirical take on politics, media and American life in general.

Bart becomes convinced that his new neighbor, Walt, is his archenemy, Sideshow Bob, disguised and back for revenge. But when Marge tries to convince Bart otherwise by taking him to visit the state penitentiary, a disturbing truth is revealed.
Direct answers for episode-level questions and details.
The Simpsons Season 21 Episode 22 aired on May 16, 2010 at 8 PM ET.
This episode runs for approximately 22 minutes.
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