The Simpsons
Treehouse of Horror XVIII
TV Flash files “Treehouse of Horror XVIII” as hour 405 of 802 in the TV Flash guide — The Simpsons (1989–present) on Fox, season 19, episode 5, aired 2007-11-04, 30 min.
From the desk
How this hour is filed
This leaf is S19E05: listed hour 405 of 802 in the The Simpsons guide, hour 5 of 20 in season 19. It aired 2007-11-04 (30 min). The listed hour before it is “I Don't Wanna Know Why the Caged Bird Sings” (S19E04). Next is “Little Orphan Millie” (S19E06). Broadcast log — titles and dates, not a plot bible.

Catalog log
Broadcast listing — not a TV Flash recap.
The frightfest begins in "Mr. and Mrs. Simpson" as Homer and Marge leave for what appears to be an ordinary day. But Homer is living a double life as a secret agent, and he is assigned to eliminate Kent Brockman. When a mysterious woman blocks Homer's shot and tries to kill Brockman herself, Homer finds that his competition "hits" a little too close to home. In "E.T. Go Home," Bart and Lisa come to the aid of Kodo the space alien, who's hiding from the government. Kodo asks them to help him obtain a long list of devices so he can reconnect with his home planet, but his intentions prove to be anything but friendly. In the final Halloween scare, "Heck House," Bart, Lisa and their friends spend Halloween night pulling pranks on unsuspecting people in Springfield. But when they go too far, Flanders decides he's going to spook them straight. Transforming the church into the "Heck House," Flanders is filled with supernatural power and subjects the children to his wrath of seven deadly sins.
Viewer FAQ
Where does Treehouse of Horror XVIII sit in the The Simpsons guide?
S19E05 is listed hour 405 of 802 — hour 5 of 20 in season 19, season 19 episode 5.
When did The Simpsons S19E05 air?
Treehouse of Horror XVIII aired 2007-11-04 and is listed at 30 minutes.
Where should I start if I am not watching all 800 episodes?
Start with the 1989 Christmas premiere, then a handful of golden-age hours from seasons four through eight. Treat the rest as a library, not a novel.
In the series
Why this series still plays
Watch it as a living joke encyclopedia, not a series you owe from pilot to present. The early years still teach how American satire learned to reset weekly; the later catalog is optional weather. You already speak Springfield. This is how the grammar got written.
The first image is a couch, and then it is not. The Simpsons treats the opening gag as a weekly contract: we will reset the living room, and we will still find a new joke about the country that owns it. Fox put a yellow family on Sunday nights in 1989 after the Tracey Ullman shorts, and the half-hour that followed did not merely popularize adult animation. It installed a shared vocabulary. People who stopped watching still speak Springfield.
Filed against
- Dan Castellaneta as Homer Simpson
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- Julie Kavner as Marge Simpson
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- Nancy Cartwright as Bart Simpson
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- Yeardley Smith as Lisa Simpson
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- Hank Azaria as Moe / Chief Wiggum
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- Harry Shearer as Mr. Burns / Ned Flanders
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