FXX Announces ‘Simpsons’ Treehouse of Horror Halloween Marathon

FXX will be airing a marathon of The Simpsons “Treehouse of Horror” episodes beginning on Sunday, October 25th.

All 25 Halloween episodes will air back-to-back beginning at 11:30am and ending at midnight each day, culminating in an epic final marathon on Saturday, October 31st.

You should know every episode by heart, in order – but just in case, here’s the full list of episodes:

Season 2 – I – “Bad Dream House, “Hungry Are the Damned,” “The Raven”

Season 3 – II – “Lisa’s Nightmare,” “Bart’s Nightmare,” “Homer’s Nightmare”

Season 4 – III – “Clown Without Pity,” “King Homer,” “Dial ‘Z’ For Zombies”

Season 5 – IV – “The Devil and Homer Simpson,” “Terror at 5 ½ Feet,” “Bart Simpson’s Dracula”

Season 6 – V – “The Shinning,” “Time and Punishment,” “Nightmare Cafeteria”

Season 7 – VI – “Attack of the 50-Foot Eyesores,” “Nightmare on Evergreen Terrace,” “Homer Cubed”

Season 8 – VII – “The Thing and I,” “The Genesis Tub,” “Citizen Kang”

Season 9 – VIII – “The Homega Man,” “Fly vs. Fly,” “Easy-Bake Coven”

Season 10 – IX – “Hell Toupee,” “The Terror of Tiny Toon,” “Starship Poopers”

Season 11 – X – “I Know What You Diddily-Iddily-Did,” “Desperately Xeeking Xena,” “Life’s A Glitch, Then You Die”

Season 12 – XI – “G-G-Ghost D-D-Dad,” “Scary Tales Can Come True,” “Night of the Dolphin”

Season 13 – XII – “Hex and the City,” “House of Whacks,” “Wiz Kids”

Season 14 – XIII – “Send in the Clones,” “The Fright to Creep and Scare Harms,” “The Island of Dr. Hibbert”

Season 15 – XIV – “Reaper Madness,” “Frinkenstein,” “Stop the World, I Want to Goof Off”

Season 16 – XV – “The Ned Zone,” “Four Beheadings and a Funeral,” “In the Belly of the Boss”

Season 17 – XVI – “B.I. Bartificial Intelligence,” “Survival of the Fattest,” “I’ve Grown a Costume on Your Face”

Season 18 – XVII – “Married to the Blob,” “You Gotta Know When to Golem,” “The Day the Earth Looked Stupid”

Season 19 – XVIII – “E.T., Go Home,” “Mr. & Mrs. Simpson,” “Heck House”

Season 20 – XIX – “Untitled Robot Parody,” “How to Get Ahead in Dead-vertising,” “It’s the Grand Pumpkin, Milhouse”

Season 21 – XX – “Dial ‘M’ for Murder or Press ‘#’ to Return to Main Menu,” “Don’t Have a Cow, Mankind,” “There’s No Business Like Moe Business”

Season 22 – XXI – “War and Pieces,” “Master and Cadaver,” “Tweenlight”

Season 23 – XXII – “The Diving Bell and Butterball,” “Dial D for Diddly,” “In the Na’Vi”

Season 24 – XXIII – “The Greatest Story Ever Holed,” “UNnormal Activity,” “Bart & Homer’s Excellent Adventure”

Season 25 – XXIV – “Oh The Places You’ll D’oh,” “Dead and Shoulders,” “Freaks no Geeks”

Season 26 – XXV – “School is Hell,” “A Clockwork Yellow,” “The Others”

The newest installment, “Treehouse of Horror XXVI,” will air October 25th. Season 27 premieres a month prior, beginning this Sunday at 8 p.m. on FOX.