Fans of “The Simpsons” who are hoping to catch all the spooky thrills of the famous “Treehouse of Horror” episodes won’t need to wait until Halloween for the fun, as marathons of are set to kick off nice and early with episodes airing as early as a week and half prior to Oct. 31 on networks such as FXX and Freeform.

Beginning on Sunday, Oct. 20, fans can catch episodes of the special programming on several channels, including FXX, which airs mini-marathons of the episodes each year, as well as Freeform, which has included them in their “31 Nights of Halloween” programming schedule for the first time. Plus, this year’s brand-new episode will also be available to watch as well, when it debuts on Fox.

See the full schedule below for air dates, times and channels (all times eastern):

Sunday, Oct. 20:

FXX:

  • 4:30 p.m.: “Halloween of Horror” (Season 27): This special Halloween episode outside of the Treehouse series sees Homer and Lisa hiding in the attic while former Halloween pop-up employees—angry at Homer, who cost them their jobs—invade the Simpson’s home.

Fox

The Simpsons Treehouse of Horror XXX The Simpsons "Treehouse of Horror XXX" episode is pictured. Photo: FOX

  • 8:00 p.m.: “Treehouse of Horror XXX” (Season 31): In this brand-new episode, Millhouse is trapped in another dimension; Dead Homer’s spirit tries some new bodies on for size; Selma finds love in an unlikely place.

Monday, Oct. 21:

FXX:

  • 6:00 p.m.: “Treehouse of Horror X” (Season 11): “I Know What You Diddily-Iddily-Did,” “Desperately Seeking Xena,” “Life’s a Glitch, Then You Die”
  • 6:30 p.m.: “Treehouse of Horror XII” (Season 13): “Hex and the City,” “House of Whacks,” “Wiz Kids”
  • 7:00 p.m.: “Treehouse of Horror XIII” (Season 14): “Send in the Clones,” “The Fright to Creep and Scare Arms,” “The Island of Dr. Hibbert”
  • 7:30 p.m.: “Treehouse of Horror XV” (Season 16): “The Ned Zone,” “Four Beheadings and a Funeral,” “In The Belly of the Boss”
  • 8:00 p.m.: “Treehouse of Horror XVI” (Season 17): “B.I.: Bartificial Intelligence,” “Survival of the Fattest,” “I’ve Grown a Costume on Your Face”
  • 8:30 p.m.: “Treehouse of Horror XX” (Season 21): “Dial ‘M’ For Murder or Press ‘#’ to Return to Main Menu,” “Don’t Have a Cow, Mankind,” “There’s No Business Like Moe Business”
  • 9:00 p.m.: “Treehouse of Horror XXI” (Season 22): “War and Pieces,” “Master and Cadaver,” “Tweenlight”
  • 9:30 p.m.: “Treehouse of Horror XXII” (Season 23): “The Diving Bell and Butterball,” “Dial D for Diddly,” “In The Na’Vi”
  • 10:00 p.m.: “Treehouse of Horror XXIV” (Season 25): “Oh the Places You’ll D’oh,” “Dead and Shoulders,” “Freaks no Geeks”
  • 10:30 p.m.: “Treehouse of Horror XXVI” (Season 27): “Wanted: Dead, Then Alive,” “Homerzilla,” “Telepaths of Glory”
  • 11:00 p.m.: “Treehouse of Horror XXVII” (Season 28): “Dry Hard,” “BFF R.I.P,” “Moefinger”
  • 11:30 p.m.: “Treehouse of Horror XXVIII” (Season 29): “The Exor-Sis,” “Coralisa,” “Mmm...Homer”

Tuesday, Oct. 22:

FXX:

  • 6:00 p.m.: “Treehouse of Horror IV” (Season 5): “Wraparounds,” “The Devil and Homer Simpson,” “Terror at 5 ½ Feet,” “Bart Simpson’s Dracula”
  • 6:30 p.m.: “Treehouse of Horror VIII” (Season 9): “The HΩmega Man,” “Fly vs. Fly,” “Easy-Bake Coven”
  • 7:00 p.m.: “Treehouse of Horror XVIII” (Season 19): “E.T. Go Home,” “Mr. & Mrs. Simpson,” “Heck House”
  • 7:30 p.m.: “Treehouse of Horror XXIII” (Season 24): “The Greatest Story Ever Holed,” “UNnormal Activity,” “Bart & Homer’s Excellent Adventure”
  • 8:00 p.m.: “Treehouse of Horror XXV” (Season 26): “School is Hell,” “A Clockwork Yellow,” “The Others”
  • 8:30 p.m.: “Treehouse of Horror XXVIII”

Wednesday, Oct. 23:

Freeform:

  • 8:00 p.m.: “Treehouse of Horror XIII”
  • 8:30 p.m.: “Treehouse of Horror XIV” (Season 15): “Reaper Madness,” “Frinkenstein,” “Stop the World, I Want To Goof Off”
  • 9:00 p.m.: “Treehouse of Horror XXI”
  • 9:30 p.m.: “Treehouse of Horror XXII”
  • 10:00 p.m.: “Halloween of Horror”
  • 10:30 p.m.: “Treehouse of Horror XXVIII”

Thursday, Oct. 24:

FXX:

  • 5:00 p.m.: “Treehouse of Horror I” (Season 2): “Bad Dream House,” “Hungry are the Damned,” “The Raven”
  • 5:30 p.m.: “Treehouse of Horror V” (Season 6): “The Shinning,” “Time and Punishment,” “Nightmare Cafeteria”
  • 6:00 p.m.: “Treehouse of Horror VI” (Season 7): “Attack of the 50-Foot Eyesores,” “Nightmare on Evergreen Terrace,” “Homer”.
  • 6:30 p.m.: “Treehouse of Horror XI” (Season 12): “G-G-Ghost D’D-Dad,” “Scary Tales Can Come True,” “Night of the Dolphin”
  • 7:00 p.m.: “Treehouse of Horror XIX” (Season 20): “Untitled Robot Parody,” “How To Get Ahead in Dead-vertising,” “It’s the Grand Pumpkin, Milhouse”
  • 7:30 p.m.: “Treehouse of Horror XXVII”

The Simpsons Treehouse of Horror XXX 2 A new "Treehouse of Horror" episode will air of "The Simpsons" ahead of Halloween. Photo: FOX

Friday, Oct. 25:

FXX:

  • 6:00 p.m.: “Treehouse of Horror I”
  • 6:30 p.m.: “Treehouse of Horror II” (Season 3): “Lisa’s Nightmare,” “Bart’s Nightmare,” “Homer’s Nightmare”
  • 7:00 p.m.: “Treehouse of Horror VII” (Season 8): “The Thing And I,” “The Genesis Tub,” “Citizen Kang”
  • 7:30 p.m.: “Treehouse of Horror IX” (Season 10): “Hell Toupee,” “The Terror of Tiny Toon,” “Starship Poopers”
  • 8:00 p.m.: “Treehouse of Horror X”
  • 8:30 p.m.: “Treehouse of Horror XII”
  • 9:00 p.m.: “Treehouse of Horror XIV”
  • 9:30 p.m.: “Treehouse of Horror XV”
  • 10:00 p.m.: “Treehouse of Horror XVII” (Season 18): “Married to the Blob,” “You Gotta Know When To Golem.” “The Day the Earth Looked Stupid”
  • 10:30 p.m.: “Treehouse of Horror XVIII”
  • 11:00 p.m.: “Treehouse of Horror XXII”
  • 11:30 p.m.: “Treehouse of Horror XXIII”

Saturday, Oct. 26:

Freeform:

  • 12:00 a.m.: “Treehouse of Horror IV”
  • 12:30 a.m.: “Treehouse of Horror XVI”
  • 1:00 a.m.: “Treehouse of Horror XXIV”
  • 1:30 a.m.: “Treehouse of Horror XXVI”

Sunday, October 27:

FXX:

  • 12:00 p.m.: “Treehouse of Horror IX”
  • 12:30 p.m.: “Treehouse of Horror XIV”
  • 1:00 p.m.: “Treehouse of Horror XV”
  • 1:30 p.m.: “Treehouse of Horror XVI”
  • 2:00 p.m.: “Treehouse of Horror XVII”
  • 2:30 p.m.: “Treehouse of Horror XVIII”
  • 3:00 p.m.: “Treehouse of Horror XIX”
  • 3:30 p.m.: “Treehouse of Horror XX”
  • 4:00 p.m.: “Treehouse of Horror XXII”
  • 4:30 p.m.: “Treehouse of Horror XXVI”
  • 8:00 p.m.: “Halloween of Horror”

Monday, October 28:

FXX:

  • 6:00 p.m.: “Treehouse of Horror I”
  • 6:30 p.m.: “Treehouse of Horror III” (Season 4): “Clown Without Pity,” “King Homer,” “Dial ‘Z’ for Zombies”
  • 7:00 p.m.: “Treehouse of Horror IV”
  • 7:30 p.m.: “Treehouse of Horror V”
  • 8:00 p.m.: “Treehouse of Horror VI”
  • 8:30 p.m.: “Treehouse of Horror VIII”
  • 9:00 p.m.: “Treehouse of Horror XXI”
  • 9:30 p.m.: “Treehouse of Horror XXIII”
  • 10:00 p.m.: “Treehouse of Horror XXIV”
  • 10:30 p.m.: “Treehouse of Horror XXV”
  • 11:00 p.m.: “Treehouse of Horror XXIV”
  • 11:30 p.m.: “Treehouse of Horror XXV”

Tuesday, October 29:

FXX:

  • 6:00 p.m.: “Treehouse of Horror II”
  • 6:30 p.m.: “Treehouse of Horror III”
  • 7:00 p.m.: “Treehouse of Horror VIII”
  • 7:30 p.m.: “Treehouse of Horror XIII”
  • 8:00 p.m.: “Treehouse of Horror XIV”
  • 8:30 p.m.: “Treehouse of Horror XX”

Thursday, October 31:

FXX:

  • 9:30 a.m.: “Treehouse of Horror I”
  • 10:00 a.m.: “Treehouse of Horror II”
  • 10:30 a.m.: “Treehouse of Horror III”
  • 11:00 a.m.: “Treehouse of Horror IV”
  • 11:30 a.m.: “Treehouse of Horror V”
  • 12:00 p.m.: “Treehouse of Horror VI”
  • 12:30 p.m.: “Treehouse of Horror VII”
  • 1:00 p.m.: “Treehouse of Horror VIII”
  • 1:30 p.m.: “Treehouse of Horror IX”
  • 2:00 p.m.: “Treehouse of Horror X”
  • 2:30 p.m.: “Treehouse of Horror XI”
  • 3:00 p.m.: “Treehouse of Horror XII”
  • 3:30 p.m.: “Treehouse of Horror XIII”
  • 4:00 p.m.: “Treehouse of Horror XIV”
  • 4:30 p.m.: “Treehouse of Horror XV”
  • 5:00 p.m.: “Treehouse of Horror XVI”
  • 5:30 p.m.: “Treehouse of Horror XVII”
  • 6:00 p.m.: “Treehouse of Horror XVIII”
  • 6:30 p.m.: “Treehouse of Horror XIX”
  • 7:00 p.m.: “Treehouse of Horror XX”
  • 7:30 p.m.: “Treehouse of Horror XXI”
  • 8:00 p.m.: “Treehouse of Horror XXII”
  • 8:30 p.m.: “Treehouse of Horror XXIII”
  • 9:00 p.m.: “Treehouse of Horror XXIV”
  • 9:30 p.m.: “Treehouse of Horror XXV”
  • 10:00 p.m.: “Treehouse of Horror XXVI”
  • 10:30 p.m.: “Treehouse of Horror XXVII”
  • 11:00 p.m.: “Treehouse of Horror XXVIII”