Treehouse of Horror, also known as The Simpsons Halloween specials, are a series of Halloween-themed episodes of the animated series The Simpsons , each consisting of three separate, self-contained segments. These segments usually involve the Simpson family in some horror, science fiction, or supernatural setting. They take place outside the show's normal continuity and completely abandon any pretense of being realistic, being known for their far more violent and much darker nature than an average Simpsons episode. The first, entitled "Treehouse of Horror", aired on October 25, 1990, as part of the second season and was inspired by EC Comics horror tales. Since then, there have been 30 other Treehouse of Horror episodes, with one airing every year.
Episodes contain parodies of horror, science fiction, and fantasy films, as well as the alien characters Kang and Kodos, a special version of the opening sequence, and scary names in the credits. The show's staff regard the Treehouse of Horror as being particularly difficult to produce, as the scripts often go through many rewrites, and the animators typically have to design new characters and backgrounds.
Many of the episodes are popular among fans and critics of the show and have inspired a whole offshoot of Simpsons merchandise, including action figures, playsets, video games, books, DVDs, comic books, and a special version of Monopoly . Several of the episodes have won awards for animation and sound editing. In 1996, 2013, and 2015, "Treehouse of Horror VI", "Treehouse of Horror XXIII", and "Treehouse of Horror XXV" were respectively nominated for the Primetime Emmy Award in the "Outstanding Animated Program (for Programming Less Than One Hour)" category.
Treehouse of Horror episodes typically consist of four parts: an opening and Halloween-themed version of the credits, followed by three segments. These segments usually have a horror, science fiction or fantasy theme and quite often are parodies of films, novels, plays, television shows, Twilight Zone episodes, or old issues of EC Comics. Although they are sometimes connected by "wraparounds", the three segments rarely have any kind of continuing connection within the episode. The two exceptions are "Treehouse of Horror V", in which Groundskeeper Willie is killed by an axe in a similar fashion in all three segments, as well as in Treehouse of Horror XXVIII, in which Maggie is possessed by the demon Pazuzu in the first segment and is still recovering in the next segment.The episodes are considered to be non-canon and always take place outside the normal continuity of the show, since each character appears to be fine afterwards.
From "Treehouse of Horror" to "Treehouse of Horror XIII", all three segments were written by different writers. In some cases there was a fourth writer who wrote the opening and wraparound segments.For the original "Treehouse of Horror", there were three different directors for the episode. Starting with season 15's "Treehouse of Horror XIV", however, only one writer has been credited with writing each Treehouse of Horror episode.
On occasion, the episodes will be used to showcase special animation, such as the "Treehouse of Horror VI" segment "Homer3", in which a computer-animated Homer is shown in a non-animated setting. At the time (1995), it was groundbreaking, as it was unusual for a television show to use such animation. The segment was executive producer Bill Oakley's idea and included live action directed by David Mirkin."Treehouse of Horror XX" included the segment "There's No Business Like Moe Business", which was the first to be musically-themed.
Every Treehouse of Horror episode opens with a special introductory segment. The first, second, and fifth Treehouse of Horror episodes open with Marge standing on a stage and warning parents about the content of the episode, advising them to put their children to bed. The warning in the first episode was put in as a sincere effort to warn young viewers, as the producers felt it was somewhat scary.The entire segment was a parody of the opening of the 1931 film Frankenstein . Marge's warnings quickly became a burden to write. After "Treehouse of Horror V", they were dropped, but returned in the season 31 episode Thanksgiving of Horror.
Other Treehouse of Horror episodes have opened with parodies; for example, "Treehouse of Horror III" had Homer introduce the episode in a manner similar to Alfred Hitchcock in Alfred Hitchcock Presents ,"Treehouse of Horror IV" had Bart introduce the episode and segments in a manner similar to Night Gallery , and "Treehouse of Horror V" featured a parody of The Outer Limits . The sixth and seventh episodes featured short clips with no lines because the episodes had run long, and longer segments were cut. Following "Treehouse of Horror VII", the opening has been upwards of a minute long and sometimes featured an introduction by a character, such as Mr. Burns in "Treehouse of Horror XVII" or included over-the-top violence, such as "Treehouse of Horror VIII" (which showed a Fox Network censor named Fox Censor being brutally murdered) and "Treehouse of Horror XIV" (which showed the Simpson family killing each other).
In the opening segment of the first five episodes, the camera zooms through a cemetery where tombstones with humorous epitaphs can be seen. These messages include the names of canceled shows from the previous season, deceased celebrities such as Walt Disney and Jim Morrison,and a tombstone with an inscription that read "TV violence" that was riddled with bullets as the camera panned on it. They were last used in "Treehouse of Horror V", which included a solitary tombstone with the words "Amusing Tombstones" to signal this. The tombstone gags were easy for the writers in the first episode, but like Marge's warnings, they eventually got more difficult to write, so they were abandoned. Another reason they were dropped was that the tombstones would list television shows that had been canceled the previous season; after a few years, several of the shows that were canceled were produced by former Simpsons writers. However, after two decades, this gag made a brief comeback in Treehouse of Horror XXIX at the very beginning, this time appearing before the main opening sequence and title.
While the early Treehouse of Horror episodes featured a Halloween themed opening sequence, the later ones only included the title and the "created by" and "developed by" credits. Every episode between "Treehouse of Horror III" and "Treehouse of Horror X" featured a couch gag with a Halloween theme, including the Simpson family dressed as skeletons,zombies, and characters from previous Halloween episodes.
The first four Treehouse of Horror episodes had brief wraparounds that occurred before each segment and loosely tied together all three stories. "Treehouse of Horror" was the only one that actually included a treehouse as a setting.In that episode, Bart and Lisa sat in it telling stories to each other. "Treehouse of Horror II" presented all of the segments as being nightmares of Lisa, Bart and Homer; "Treehouse of Horror III" had Lisa, Bart and Grampa telling stories at a Halloween party; and "Treehouse of Horror IV" is presented by Bart in a parody of Rod Serling's Night Gallery . After a few years, the amount of broadcast time for an episode was shortened, allowing less time to tell a proper story. There were no wraparounds for "Treehouse of Horror V" because they had been cut to make more time for the segments. Following that, the writers permanently dropped them.
Two characters that are virtually exclusive to the Treehouse of Horror series are Kang and Kodos, a pair of large green space aliens who were introduced in the "Hungry are the Damned" segment of "Treehouse of Horror". Kang and Kodos have since appeared in every Treehouse of Horror episode, sometimes as important parts of a story, but often just for brief cameos. In some episodes, they only appear in the opening segment,but often they will make a cameo appearance in the middle of a different story. For example, a story about zombies attacking the town briefly cuts to them in their space ship, watching the events and laughing maniacally at the Earthlings' suffering. The action then switches back to the actual story. The unofficial rule is that they must be in every episode, although quite often they will be forgotten and are added at the last moment, resulting in only a brief appearance. Their scene in "Treehouse of Horror VIII" nearly did not make the final cut of the episode, but David X. Cohen managed to persuade the producers to leave the scene in.
Kang and Kodos were prominent characters in the 2015 episode "The Man Who Came to Be Dinner," which was not Halloween themed.
Beginning with "Treehouse of Horror II", the producers decided to give the cast and crew of the show "scary names" in the opening and closing credits. Although the names quickly became more silly than scary, there have been a wide variety of special credits, from simple names like "Bat Groening" to complex ones like "David²+S.²=Cohen²".Sam Simon, who left the show during the fourth season, still receives "developed by" and "executive producer" credits, and until Treehouse of Horror XXVI, he had been listed in Treehouse of Horror episodes as "Sam 'Sayonara' Simon". Since his death in 2015, he has been credited simply by his real name.
The idea for "scary names" came from executive producer Al Jean, who was inspired by EC Comics because some of the issues also used "scary" alternate names.The "scary names" became such a burden to write that they were cut for "Treehouse of Horror XII" and "Treehouse of Horror XIII", but after hearing complaints from the fans, Jean decided to bring them back. Matt Groening's rule for the "scary names" is that they cannot be longer than a person's real name, but this is rarely followed by anyone else.
References to films, novels, plays, television shows, and other media are commonly featured, and many segments have been parodies of a specific work in the horror, science fiction, or fantasy genre. Many segments are spoofs of episodes of The Twilight Zone , and entire segments will be based on a single episode.Some of the Twilight Zone episodes parodied include "A Kind of a Stopwatch", "To Serve Man", "A Small Talent for War", "Living Doll", "Nightmare at 20,000 Feet", "Little Girl Lost", and "The Little People". The "Bart's Nightmare" segment of "Treehouse of Horror II" parodies the episode "It's a Good Life" and is even presented in a format similar to an episode of The Twilight Zone. The Halloween episodes also regularly parody horror and thriller films such as The Exorcist , The Amityville Horror , King Kong , Night of the Living Dead , The Shining , A Nightmare on Elm Street , The Fly , Psycho , Paranormal Activity , and Dead Calm . Robert Englund, who portrays Freddy Krueger in the Nightmare on Elm street franchise, had a cameo appearance in "Treehouse of Horror IX" as the character. Science fiction films have also occasionally been used as inspiration for segments, and in later episodes, many of the segments were based more on science fiction than horror. Science fiction works parodied include The Omega Man , the novel Nineteen Eighty-Four , E.T. the Extra-Terrestrial , and Orson Welles's The War of the Worlds radio broadcast. In "Treehouse of Horror", Edgar Allan Poe's poem "The Raven" is read by James Earl Jones, while the parts are acted by various characters. Recent parodies have included films and television specials in more varied genres, including Mr. & Mrs. Smith , It's the Great Pumpkin, Charlie Brown , Transformers , Sweeney Todd , the Twilight film series, and Jumanji .
A modified version of the production logo for Gracie Films is displayed after the closing credits. The shushing sound is replaced by a scream (for the most part), and the jingle is played in a minor key on a pipe organ. Earlier episodes did not feature the scream.
The first Treehouse of Horror installment aired in 1990 as part of the second season, and its on-screen title was "The Simpsons Halloween Special." It was inspired by EC Comics Horror tales.Although every episode is entitled Treehouse of Horror, the first was the only episode that actually used the treehouse motif. During production of the first episode, Matt Groening was nervous about "The Raven" segment, and felt it would be "the worst, most pretentious thing [they had] ever done."
The Treehouse of Horror episodes are difficult for both the writers and the animators. minute episode. The episodes often go through many last minute changes, with rewrites requiring new lines to be recorded. "Treehouse of Horror III" in particular underwent somewhere between 80 and 100 line changes in the six-week period between the arrival of the animation from Korea and the airing of the episode. By the fourth season, executive producers Al Jean and Mike Reiss were less enamored of Treehouse of Horror episodes and considered dropping them, but the other writers insisted that they be kept.The episodes were originally written at the beginning of the production run, but in later seasons they were written at the end and aired at the beginning of the next season as holdovers, giving the animators more time to work. Part of the difficulty for the animators is that the episodes always involve many complex backgrounds, new characters and new designs. They are difficult for the writers because they must produce three stories, an opening and, in the early episodes, a wraparound. They would have to try to fit all of this into a 20–22
Part of the attraction for the writers is that they are able to break the rules and include violence that would not make a regular episode.In some cases, the writers will have an idea that is too violent and far-fetched or too short for a normal episode, but can be used as a segment in the seasonal special. Several of the writers, former executive producer Mirkin among them, believe that the episodes should be scary and not just funny. Treehouse of Horror V has been described by Mirkin as being one of "the most intense, disturbing Halloween show ever" as it was filled with violence and gore in response to new censorship rules. Earlier installments began with Marge issuing a disclaimer that "if you have sensitive children, maybe you should tuck them into bed early tonight instead of writing us angry letters tomorrow." However, these episodes seem mild compared to the carnage that followed in later episodes, according to Jean, who calls it "a societal thing". He points out that his 10-year-old daughter loves films like Coraline , and that, "[in] the age of scary stories [...] appropriateness has gotten lower."
Although gruesome for the most part, some segments, such as "Citizen Kang" in Treehouse of Horror VII , satirize political issues. The opening segment of Treehouse of Horror XIX featured Homer attempting to vote for Barack Obama but a rigged electronic voting machine instead registers a vote for John McCain.Rather than taking sides in the election, Jean says it is "mostly a comment on what many people to believe to be the irregularities in our voting system.[sic]" In Treehouse of Horror XVII , a segment called "The Day the Earth Looked Stupid" ends with Kang and Kodos taking over Springfield as part of a mission called "Operation: Enduring occupation". The script originally called for Kodos and Kang to look over the smoking ruins of Springfield and say "This sure is a lot like Iraq will be." The Fox network did not have any objection to the line, but it was rejected by some of the writers as too obvious and was cut from broadcast. While cut from the aired version, the line does appear in the "review" version sent to newspapers and magazines.
The first Treehouse of Horror episode was the first time that an alternate version of the theme that airs over the end credits was used. Originally, it was intended to use a theremin, but one could not be found that could hit all the necessary notes.Usually when the producers submit an episode for the Primetime Emmy Award for "Outstanding Individual Achievement in Music Composition for a Series (Dramatic Underscore)", they submit a Treehouse of Horror episode, and to date, seven episodes have been nominated. The closing of IV features a version of the theme that is a combination of the instruments used in The Munsters theme song and the harpiscord and clicking from the Addams Family theme song.
Üter Zörker is so far the only human character introduced in a Treehouse of Horror to make it into canon. His debut episode was "Treehouse of Horror IV" in the segment "Terror at 5 1⁄2 Feet". He is an obese German exchange student obsessed with candy and is voiced by Russi Taylor.
Jean revealed that 2019's Treehouse of Horror will be the 666th episode of the series. Jean stated that this was planned ever since the beginning in 1989.
Although Treehouse of Horror episodes are Halloween-themed, for several years new episodes premiered in November following the holiday, due to Fox's coverage of Major League Baseball's World Series.Season 12's "Treehouse of Horror XI" was the first episode to air in November. There have been several references to this in the show, such as in "Treehouse of Horror XIV" where Kang looks at a TV Guide and says, "Pathetic humans. They're showing a Halloween episode... in November!" and Kodos replies "Who's still thinking about Halloween? We've already got our Christmas decoration up." The camera then cuts to a shot of the fireplace with Christmas decorations, and festive Christmas music plays over the opening credits. Season 21's "Treehouse of Horror XX" aired October 18, before the World Series, but the following year's episode, "Treehouse of Horror XXI", aired in November. Season 23's "Treehouse of Horror XXII aired on October 30, however, as the World Series (which went the maximum of seven games) had concluded on October 28. Subsequent Treehouse of Horror episodes have premiered in the month of October. The 31st season included a Thanksgiving-themed spinoff, "Thanksgiving of Horror".
There has been a variety of merchandise based on the Treehouse of Horror episodes, including books, action figures, comic books, video games, DVDs and a "Treehouse of Horror" version of Hasbro's board game Monopoly.Although every Treehouse of Horror episode until "Treehouse of Horror XVI" has been released along with its season in a boxset, in 2003, The Simpsons: Treehouse of Horror DVD was released. It includes Treehouse of Horrors V, VI, VII and XII. A Treehouse of Horror comic book has been published annually since 1995, and collected into several books, including The Simpsons Treehouse of Horror Fun-Filled Frightfest, Bart Simpson's Treehouse of Horror Spine-Tingling Spooktacular, Bart Simpson's Treehouse of Horror Heebie-Jeebie Hullabaloo and The Simpsons Treehouse of Horror Hoodoo Voodoo Brouhaha. Several video games based on The Simpsons include levels with a Halloween theme, including The Simpsons: Hit & Run and The Simpsons Game . In 2001, Fox Interactive and THQ released The Simpsons: Night of the Living Treehouse of Horror on Game Boy Color. The entire game has a Halloween theme as the player tries to save the Simpson family from the Treehouse of Horror.
Many of the special character designs featured in the episodes have become action figures.Four different playsets have been made by Playmates Toys and released as Toys "R" Us exclusives. The sets are:
After the Playmates Toys sets were finished, McFarlane Toys produced four Treehouse of Horror themed playsets including the "Ironic Punishment Box Set" released in 2004, — Homer & Marge Action Figures" released in 2005, "The Island of Dr. Hibbert Box Set" released in 2006, and a "Lard Lad Box Set" released in 2007.the "In the Belly of the Boss
The Treehouse of Horror episodes are often among the top-rated episodes of their seasonsand many of the Treehouse of Horrors have generally been well-received by fans. However, like The Simpsons itself, critics have noted a decline in the quality of the later episodes. In its first airing, "Treehouse of Horror" finished with a 15.7 Nielsen rating and a 25% audience share and would lose to The Cosby Show . It was said that it "set a level of excellence that viewers never expected creator Matt Groening to repeat", although it was also described as "kind of stupid and unsatisfying". "Treehouse of Horror V" is considered the best episode by several critics: it finished ninth on Entertainment Weekly's top 25 The Simpsons episode list, fifth on AskMen.com's "Top 10: Simpsons Episodes" list, and was named best episode of the sixth season by IGN.com. In 2006, James Earl Jones, who guest starred in "Treehouse of Horror" and "Treehouse of Horror V", was named seventh on IGN's "Top 25 Simpsons Guest Appearances" list.
In 2006, IGN.com published a list of the top ten Treehouse of Horror segments, and they placed "The Shinning" from "Treehouse of Horror V" at the top, saying it was "not only a standout installment of the annual Halloween episode, but of The Simpsons, period."Rounding out the list were "Dial "Z" for Zombies", "The Devil and Homer Simpson", "Time and Punishment", "Hungry Are the Damned", "Clown Without Pity", "Citizen Kang", "If I Only Had a Brain", "Bart Simpson's Dracula", and "Starship Poopers". The third, fourth, and fifth episodes were each represented by two segments. The most recent episode on the list was "Treehouse of Horror IX", which first aired in 1998.
"Treehouse of Horror VII" is Simpsons creator Matt Groening's seventh favorite episode, and the line he likes best is "We have reached the limit of what rectal probing can teach us.""King Homer" of "Treehouse of Horror III" is one of Matt Groening's favorite segments. "Treehouse of Horror III" is also noted for the moment where Homer shoots Ned Flanders and Bart says "Dad, you killed the Zombie Flanders!" only for Homer to reply, "He was a zombie?" It is also one of Groening's favorite lines.
In 1996, the "Homer³" segment of "Treehouse of Horror VI" was awarded the Ottawa International Animation Festival grand prize.In 1998, "Treehouse of Horror VIII" won a Golden Reel Award for "Best Sound Editing – Television Animated Specials"; the recipients were Robert Mackston, Travis Powers, Norm MacLeod, and Terry Greene. Bob Beecher also received a nomination for "Best Sound Editing in Television Animation – Music" for "Treehouse of Horror X".
The second, third, fifth, eighth, ninth, fourteenth, fifteenth, and eighteenthTreehouse of Horror episodes were nominated for "Outstanding Individual Achievement in Music Composition for a Series (Dramatic Underscore)" at the Primetime Emmy Awards. The second and third "Treehouse of Horror" episodes were also nominated for "Outstanding Individual Achievement in Sound Mixing for a Comedy Series or a Special". In 1996, "Treehouse of Horror VI" was submitted for the Primetime Emmy Award in the "Outstanding Animated Program (For Programming less than One Hour)" category because it had a 3D animation sequence, which the staff felt would have given it the edge. The episode failed to win, and Bill Oakley later expressed regret about submitting the episode. The twenty-third and twenty-fifth Treehouse of Horror episodes were nominated for the same award in 2013 and 2015 respectively.
"Treehouse of Horror" is the third episode of The Simpsons' second season. It originally aired on the Fox network in the United States on October 25, 1990. The episode was inspired by 1950s’ horror comics, and begins with a disclaimer that it may be too scary for children. It is the first Treehouse of Horror episode. These episodes do not obey the show's rule of realism and are not treated as canon. The opening disclaimer and a panning shot through a cemetery with humorous tombstones were features that were used sporadically in the Treehouse of Horror series and eventually dropped. This is also the first episode to have the music composed by Alf Clausen.
"Treehouse of Horror IV" is the fifth episode of The Simpsons' fifth season and the fourth episode in the Treehouse of Horror series of Halloween specials. It originally aired on the Fox network in the United States on October 28, 1993, and features three short stories called "The Devil and Homer Simpson", "Terror at 5 1⁄2 Feet", and "Bart Simpson's Dracula".
"Treehouse of Horror II" is the seventh episode of The Simpsons' third season. It first aired on the Fox network in the United States on October 31, 1991. It is the only Treehouse of Horror episode to date where each segment name is not stated inside the episode. It is the second annual Treehouse of Horror episode, consisting of three self-contained segments, told as dreams of Lisa, Bart and Homer. In the first segment, which was inspired by W. W. Jacobs's short story The Monkey's Paw and The New Twilight Zone episode "A Small Talent for War", Homer buys a Monkey's Paw that has the power to grant wishes, although all the wishes backfire. In the second part, which parodies the Twilight Zone episode "It's a Good Life", Bart is omnipotent, and turns Homer into a jack-in-the-box, resulting in the two spending more time together. In the final segment, Mr. Burns attempts to use Homer's brain to power a giant robotic laborer.
"Treehouse of Horror III" is the fifth episode of The Simpsons' fourth season. It originally aired on the Fox network in the United States on October 29, 1992. In the third annual Treehouse of Horror episode, Homer buys Bart an evil talking Krusty doll, King Homer is captured by Mr. Burns, and Bart and Lisa inadvertently cause zombies to attack Springfield.
"Treehouse of Horror V" is the sixth episode of The Simpsons' sixth season and the fifth episode in the Treehouse of Horror series. It originally aired on the Fox network in the United States on October 30, 1994, and features three short stories titled The Shinning, Time and Punishment, and Nightmare Cafeteria.
"Treehouse of Horror VI" is the sixth episode of The Simpsons' seventh season and the sixth episode in the Treehouse of Horror series. It first aired on the Fox network in the United States on October 29, 1995, and contains three self-contained segments. In "Attack of the 50-Foot Eyesores", an ionic storm brings Springfield's oversized advertisements and billboards to life and they begin attacking the town. The second segment, "Nightmare on Evergreen Terrace", is a parody of the A Nightmare on Elm Street film series, in which Groundskeeper Willie attacks schoolchildren in their sleep. In the third and final segment, "Homer3", Homer finds himself trapped in a three-dimensional world. It was inspired by The Twilight Zone episode "Little Girl Lost". The segments were written by John Swartzwelder, Steve Tompkins, and David S. Cohen respectively.
"Treehouse of Horror VII" is the first episode of The Simpsons' eighth season. It originally aired on the Fox network in the United States on October 27, 1996. In the seventh annual Treehouse of Horror episode, Bart discovers his long-lost twin, Lisa grows a colony of small beings, and Kang and Kodos impersonate Bill Clinton and Bob Dole in order to win the 1996 presidential election. It was written by Ken Keeler, Dan Greaney, and David S. Cohen, and directed by Mike B. Anderson. Phil Hartman provided the voice of Bill Clinton.
"Treehouse of Horror VIII" is the fourth episode of The Simpsons' ninth season. It first aired on the Fox network in the United States on October 26, 1997. In the eighth annual Treehouse of Horror episode, Homer Simpson is the last man left alive when a neutron bomb destroys Springfield until a gang of mutants come after him, Homer buys a transporter that Bart uses to switch bodies with a housefly, and Marge is accused of witchcraft in a Puritan rendition of Springfield in 1649. It was written by Mike Scully, David X. Cohen and Ned Goldreyer, and was directed by Mark Kirkland.
"Treehouse of Horror IX" is the fourth episode in the tenth season of the American animated television series The Simpsons. It first aired on the Fox network in the United States on October 25, 1998. This is the ninth Treehouse of Horror episode, and, like the other "Treehouse of Horror" episodes, contains three self-contained segments: In "Hell Toupée", Homer gets a hair transplant and is possessed by the spirit of an executed criminal; in "Terror of Tiny Toon", Bart and Lisa are trapped in a special, extremely violent episode of The Itchy & Scratchy Show; and in "Starship Poopers", Marge reveals that Maggie is the product of a one-night stand with the alien Kang.
"Treehouse of Horror X" is the fourth episode of The Simpsons' eleventh season, and the tenth annual Treehouse of Horror episode, consisting of three self-contained segments. It first aired on the Fox network in the United States on Halloween 1999. In "I Know What You Diddily-Iddily-Did", the Simpsons cover up a murder and are haunted by an unseen witness. In "Desperately Xeeking Xena", Bart and Lisa gain superpowers and must rescue Xena star Lucy Lawless from the Comic Book Guy's alter ego The Collector, and in "Life's a Glitch, Then You Die", Homer causes worldwide destruction thanks to the Y2K bug.
"Treehouse of Horror XI" is the first episode of The Simpsons' twelfth season and the 249th overall, and the eleventh Halloween episode. The episode features "G-G-Ghost D-D-Dad", "Scary Tales Can Come True" and "Night of the Dolphin" and was written by Rob LaZebnik, John Frink and Don Payne and Carolyn Omine and directed by Matthew Nastuk.
"Treehouse of Horror XII" is the first episode of The Simpsons' thirteenth season. Because of Fox's contract with Major League Baseball's World Series, the episode first aired on the Fox network in the United States on November 6, 2001, nearly one week after Halloween. It is the twelfth annual Treehouse of Horror episode, consisting of three self-contained segments. In the first segment, a gypsy puts a curse on Homer, which puts everybody he cares about in danger. In the second segment, which is a parody on both 2001: A Space Odyssey and Demon Seed, the Simpson family buys a new house, who falls in love with Marge and attempts to kill Homer. In the third and final segment, which lampoons the Harry Potter franchise, Lord Montymort attempts to capture Lisa, a skilled magician, in order to drain her magic powers.
"Treehouse of Horror XIII" is the first episode of The Simpsons' fourteenth season and the thirteenth Halloween episode. It first aired on the Fox network in the United States on November 3, 2002, three days after Halloween. It is the second Treehouse of Horror to have a zombie related segment, and the last Treehouse of Horror to have three separate writers credited for writing three stories. It is also the first Simpsons Halloween episode to be titled Treehouse of Horror in the opening credits, as all prior Halloween episodes were referred to as The Simpsons Halloween Special.
"Treehouse of Horror XVII" is the fourth episode of The Simpsons' eighteenth season, and the seventeenth Treehouse of Horror episode. It originally aired on the Fox network in the United States on November 5, 2006. In "Married to the Blob", Homer eats green extraterrestrial slime and morphs into a rampaging blob with an insatiable appetite; in "You Gotta Know When to Golem", Bart uses Krusty's golem to wreak havoc on his tormentors; and in "The Day the Earth Looked Stupid", the residents of an early-1930s Springfield refuse to believe news of an actual alien invasion after being duped by Orson Welles's War of the Worlds radio broadcast.
Kang and Kodos Johnson are a duo of fictional recurring characters in the animated television series The Simpsons. Kang is voiced by Harry Shearer and Kodos by Dan Castellaneta. They are green, octopus-like aliens from the fictional planet Rigel VII and appear almost exclusively in the "Treehouse of Horror" episodes. The duo has appeared in at least one segment of all thirty Treehouse of Horror episodes. Sometimes their appearance is the focus of a plot, other times a brief cameo. Kang and Kodos are often bent on the conquest of Earth and are usually seen working on sinister plans to invade and subjugate humanity.
"Treehouse of Horror XVIII" is the fifth episode of The Simpsons' nineteenth season. It first aired on the Fox network in the United States on November 4, 2007. In the eighteenth annual Treehouse of Horror episode, Bart harbors Kodos the alien in "E.T., Go Home," Homer and Marge are husband and wife assassins who try to take each other out in "Mr. & Mrs. Simpson," and Ned Flanders is given God-like powers during his demonstration on the wages of sin in "Heck House." It was written by Marc Wilmore and directed by Chuck Sheetz.
"Treehouse of Horror XX" is the fourth episode of The Simpsons' twenty-first season. It first aired on the Fox network in the United States on October 18, 2009. This is the twentieth "Treehouse of Horror" installment, containing three self-contained stories: In "Dial "M" for Murder or Press "#" to Return to Main Menu", Lisa is forced into a Hitchcock-esque murder scheme by Bart; in "Don't Have a Cow, Mankind", Springfield is once again overrun by zombies thanks to Krusty Burger's latest sandwich; and in the Sweeney Todd parody, "There's No Business Like Moe Business", Moe the bartender bleeds Homer dry to create the perfect microbrewed beer. An estimated 8.59 million viewers tuned in to watch the episode.
"Treehouse of Horror XXII" is the third episode of the twenty-third season and the twenty-second Halloween episode of the American animated sitcom The Simpsons. It originally aired on the Fox network in the United States on October 30, 2011. The episode is part of the Treehouse of Horror series, which is an episode divided into three separate stories and an opening that is a parody of scary or Halloween themed stories. This episode's stories were primarily spoofs of the French film The Diving Bell and the Butterfly, the television series Dexter, and the American film Avatar. The opening was a parody of the autobiographical film 127 Hours, in which the subject Aron Ralston loses an arm.
"Treehouse of Horror XXVI" is the fifth episode of the twenty-seventh season of the American animated television series The Simpsons, the 26th episode in the Treehouse of Horror series of Halloween specials, and the 579th episode of the series overall. It originally aired on the Fox network in the United States on October 25, 2015.