S20E04The Simpsons season 20 episode 4: Treehouse of Horror XIX
Aired 2 November 200823 minRated TV-PG
Where to watch The Simpsons Season 20 in Australia
The Simpsons season 20 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 “Treehouse of Horror XIX”
Springfield is the setting for parodies of Charlie Brown, It's the Great Pumpkin and Michael Bay's Transformers as Homer's vote on election day is misread by a renegade machine.
Episode summary: TMDB.
Before you watch
- It is episode 4 of 21 of season 20, so watch episodes 1 to 3 first.
- It runs about 23 minutes.
- Directed by Bob Anderson, written by Matt Warburton.
- TMDB users rate it 6.6 out of 10 (31 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
- Matt Warburton
- Guest stars
- Marcia Wallace as Edna Krabappel (voice)
Credits: TMDB.
More from The Simpsons Season 20
Previous · S20E03Double, Double, Boy in Trouble19 October 2008
Next · S20E05Dangerous Curves9 November 2008Every episode of Season 20The 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.