S21E17The Simpsons season 21 episode 17: American History X-cellent
Aired 11 April 201022 minRated TV-PG
Where to watch The Simpsons Season 21 in Australia
The Simpsons season 21 is streaming in Australia on Disney+ (subscription, listed for the whole show). You can also buy it on Apple TV from $24.99.
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Availability checked 16 November 2026.
What happens in “American History X-cellent”
When the police are called to diffuse a rowdy crowd at Mr. Burns' estate, one of the officers recognizes priceless stolen paintings on the walls, and the maniacal billionaire is taken downtown for questioning. With Mr. Burns gone, Smithers takes charge of the power plant. But when employees take advantage of his good nature, he exacts revenge by forcing the employees to work night and day. These unfair working conditions prompt Homer and his crew to devise a plan to bust out Mr. Burns.
Episode summary: TMDB.
Before you watch
- It is episode 17 of 23 of season 21, so watch episodes 1 to 16 first.
- It runs about 22 minutes.
- Directed by Bob Anderson, written by Michael Price.
- TMDB users rate it 6.5 out of 10 (27 votes).
The Simpsons trailer
The official trailer for the series (no preview of this episode has been published).
Play video: The Simpsons trailer
Cast and crew of this episode
- Director
- Bob Anderson
- Writer
- Michael Price
- Guest stars
- Joe Mantegna as Fat Tony (voice)Pamela Hayden as Milhouse Van Houten (voice)Kevin Michael Richardson as Burns' Cellmate (voice)Tress MacNeille as Additional Voices (voice)Karl Wiedergott as Prisoners / Burns' First Cellmate (voice)
Credits: TMDB.
More from The Simpsons Season 21
Previous · S21E16The Greatest Story Ever D'ohed28 March 2010
Next · S21E18Chief of Hearts18 April 2010Every episode of Season 21The Simpsons episode guide
Episode names, air dates, runtimes, stills and ratings: TMDB. Air dates are the first broadcast anywhere; where it streams is our daily Australian check.