The Simpsons Season 15 Episode 21 Bart-Mangled Banner ( Air Date 2004-05-16 ) Genre Animation, Comedy category. Overview "After receiving an injection from Dr. Hibbert, Bart becomes temporarily deaf, which makes him impervious to being bullied, until he accidentally moons the American flag during a donkey basketball game, prompting everyone in town to accuse the Simpsons of being unpatriotic under the new "Government Knows Best" Act.".
The Simpsons Season 15 Episode 21 Bart-Mangled Banner
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- Watch: The Simpsons Season 15 Episode 21 Bart-Mangled Banner on CWR-CRB
- Stars: Dan Castellaneta, Julie Kavner, Nancy Cartwright, Yeardley Smith, Hank Azaria, Harry Shearer
- Director:
