Treehouse of Horror XXII

When Bart, Lisa and Maggie come home with their Halloween candy hauls, Marge confiscates all of it to donate to the army. Homer instead runs off with the bag to eat its contents in privacy at a canyon cliff. Unfortunately, Homer trips and falls to the bottom of the canyon with his arm pinned. Fueled by his need to get the out-of-reach bag of candy, and rather than wait twenty minutes for help, Homer chews off his arm. Then he chews off the one that was actually pinned, Homer learns that he was carrying a bag of vegetables, as Bart, Lisa and Maggie had secretly stolen back the candy, inciting a dismayed Homer to scream in rage. Throughout this story, Bart, Lisa and Maggie are seen eating the candy.

In a parody of The Diving Bell and the Butterfly and Spider-Man, Homer begins to decorate the house for Halloween and is reaching for a decoration in a box. Unfortunately, there is a real black widow spider in the box and when Homer grabs what he thinks is a plastic spider, he is bitten by it. The bite leaves Homer paralyzed and unable to speak. When Lisa reads for him, she discovers that he can communicate through farting. The Simpson family is amazed at the result and Lisa helps Homer tell Marge how he feels about her. When he is again bitten by another spider (a radioactive one this time), he gains the ability to shoot spider webs out of his rear end and have the same abilities as Spider-Man, though he is still unable to move or talk.

In a parody of Dexter, after hearing a voice that he thinks is God telling him to murder people, Ned Flanders becomes a serial killing vigilante, targeting characters who are Homer's enemies. When Flanders discovers that Homer is the one who has been duping him into committing murder (by way of a Bible-shaped receiver), Homer argues that God does not exist and starts burning Ned's bible, only to be stopped and strangled to death by God Himself. Marge begs God to reverse everything that has happened, but God tells her that Satan is the one who is running the world. When Flanders thinks that this scenario cannot get any worse, it is revealed that Satan is sleeping with Ned's deceased wife, Maude.

In a parody of Avatar, taking place in the future, Krusty the Clown sends the military force to the planet Rigel 7 to find the a sacred extract Hilarrium, so he can easily entertain his Nazi audience. The military recruits Bart and Milhouse to befriend the alien race in avatar bodies. They succeed in this and Bart ends up getting Kang's daughter pregnant after falling in love with her. They learn that the extract Hilarrium, which is excreted by their queen, is primarily used by the natives to reduce the mood swings of pregnant women. Milhouse then contacts the military of their location, which then attacks the natives. In the battle, the natives are helped by all the animals of the planet, which eventually defeats the military. Kang and Kodos then admit that they would have just given the Hilarrium to the humans.

At the end, Carol of the Bells (from Home Alone) is played as all of the characters that appeared say various things about Christmas, such as Marge saying that making a sweater causes 27 people to lose their jobs. At the very end, Grampa Simpson shows up in a black tutu, asking when the Black Swan comes up, and everyone wonders when the Black Swan will come.

"Treehouse of Horror XXII" originally aired on the Fox network in the United States on October 30, 2011, the night before Halloween. The release date was unusual for a Treehouse of Horror episode, because ever since Fox got the rights to the Major League Baseball playoffs, most of the Halloween specials aired in the first week of November. This only marks the second time Fox has aired a Treehouse of Horror episode in October since 1999 – in 2009 it aired nearly two weeks before Halloween.[13] Major League Baseball decided to move the 2011 World Series earlier than the previous season so that no games would be played in November,[14] leaving October 30 free for Fox to air "Treehouse of Horror XXII" on that date. When The Wrap asked show runner Al Jean if he was satisfied with the airing the night before Halloween, Jean said: "Yes, and the perfect thing is, Halloween is actually a bad day to air it, because nobody watches TV that night. Especially if they have kids. So October 30th, it is our Halloween. People can watch it and then still go out the next night."[2] Since then, every Treehouse of Horror episode following "Treehouse of Horror XXII" has aired during the month of October.

The episode was watched by approximately 8.10 million people during the first broadcast.[15] The show received a 4.0 Nielsen rating in the demographic for adults aged 18–49 and a ten percent share of the audience, which was a 33 percent increase from the previous episode "Bart Stops to Smell the Roosevelts".[16] The Simpsons became the highest-rated program in Fox's Animation Domination lineup that night both in terms of viewers and in the 18–49 demographic. It finished before Family Guy, The Cleveland Show and the series premiere of Allen Gregory.[16] Besides a broadcast of a NFL Football game between the Dallas Cowboys and the Philadelphia Eagles on NBC, The Simpsons was the most watched program of the night in the 18–49 demographic.[16] In comparison, the episode increased eight percent over the previous year's "Treehouse of Horror XXI", which had a 3.7 Nielsen rating and a nine percent share of the audience in the 18–49 demographic.[17] For the week of October 24–30, 2011, The Simpsons finished 14th in the 18–49 demographic, fourth in the 18–34 demographic, and third among teenagers.[17]

Since airing, "Treehouse of Horror XXII" has received mixed reviews from critics. Josh Harrison of Ology was positive and gave the episode a rating of seven out of ten, but commented that he preferred "episodes that feature longer, more involved storylines more than the spoof collections."[18] At The A.V. Club, Hayden Childs gave the episode a C+ grade, saying, "The writers seem unwilling to mock the more outrageous aspects of the movies they are sending up and settle for weakly batting at the obvious. Some of the jokes land, but none land too solidly."[10] Meredith Woerner of io9 thought that "[t]he whole thing never quite achieved the same level of brilliance as some previous years — even though the Avatar bit was funny, we've seen so many Avatar spoofs by now that, well, it's tired. However we did get a lot of joy out of seeing Homer dressed up as Doctor Manhattan and Maggie as a wee-little chest burster."[19] Even more critical was CraveOnline's Blair Marnell who gave the episode a rating of three out of ten. He commented that "there is no stronger argument for ending 'The Simpsons' than the latest Halloween installment of 'Treehouse of Horror'" and further said that "in all honesty, it's amazing how tame 'The Simpsons' has become over the years. This show used to be the 'South Park' of its day. Now it's just showing its age and it's no longer the cool TV rebel that it used to be."[20] Alex Strachan had the opposite reaction in a review in Calgary Herald and concluded that we should "[f]orget all that talk about The Simpsons being past its prime. Based on tonight's sharp-eyed, keen-witted Treehouse of Horror XXII - funnier, faster and more fright-worthy than last year's dud, thankfully - there's a lot of ink left in the old ink pot yet."[21]

The first segment, "The Diving Bell and the Butterball", was met with mixed reactions. Marnell called the parody "wildly unfunny", while Childs was critical of Homer turning into a paralyzed Spider-Man and stated that it was "simply not very funny."[10] Tim Surette of TV.com was more ambivalent and said: "I found this sketch to be simultaneously awesome and terrible because I have the maturity of a 6-year old and the intelligence of an average man."[9] The reference to the Broadway musical Spider-Man: Turn Off the Dark was noticed by the producers of the musical. They reacted by issuing a statement the following day: "Everyone at 'Spider-Man: Turn Off the Dark' was extremely flattered by last night’s tribute on 'The Simpsons.' 'The Simpsons' is an iconic American institution, and being part of last night's episode was an honor and dream come true."[11] Coincidentally, the previous aired episode of South Park, "Broadway Bro Down", also had a reference to the musical, but the spokesperson for the Broadway show did not want to comment on that episode.[11] Vulture ranked it the worst "Treehouse of Horror" segment ever, stating, "From stale parodies to uncalled-for fart jokes (Homer can only communicate through flatulence; he also shoots spider webs out of his butt), 'Diving Bell' is the worst Treehouse yet."[22]

The response for "Dial D for Diddly" was that it started well, but then gradually declined. In Marnell's opinion, "[t]he best segment of the entire episode comes when Ned makes his normal routine look sinister and yet when he finally closes his hands to pray, he's actually holding a pair of severed hands", but as for the rest of the segment, he is disappointed: "[W]hen it seems like the short is heading for some darkly hilarious territory, the voice of God turns out to be Homer urging Ned to murder his enemies."[20] Other reviewers agreed with his assessment. Surette concluded that the episode "[s]tarted off good, but got boring very quick."[9] Likewise, Childs commented that the "segment had a lot of promise for the funny, but it started to sag fast and then sank altogether."[10]

Much of the criticism towards the Avatar spoof "In the Na'Vi" goes towards the timing of the episode. Surette thought that it was "[a]n Avatar spoof that came about two years too late. This sketch had no redeeming qualities and should be erased from the minds of all Simpsons fans immediately."[9] Similarly, Marnell commented that in the episode "The Simpsons' finally gets around to parodying 'Avatar' — a movie picked to death by 'South Park' and other series a year or two ago" and further elaborated that "[i]t's almost a straight forward retelling of 'Avatar' without the biting satire that made the film parodies of previous years so much fun."[20] In general, Treehouse of Horror episodes take about a year to complete for the staff. This is because they have to do many original designs, such as characters and backgrounds. Prior to the airing of the episode, Jean revealed that the staff was already working on "Treehouse of Horror XXIII".[2]

At the 39th Annual Annie Awards, Omine won the "Writing in a Television Production" category for her work on "Treehouse of Horror XXII".[23]