Release Date Change

Original September 27, 2019 release date crossed out.^note This was due to the mass shootings that took place in El Paso and Dayton.
Good luck seeing it in theaters, though.

"...but if you remember that time Logan Paul filmed a vlog with a real corpse in the Japanese suicide forest, then it quickly becomes clear that the film was held back until he was a slightly less controversial figure."

— I Hate Everything, on Airplane Mode

A trailer or poster announces a work's release date, but before its release, the date is pushed either back or forward due to unforeseen circumstances. This can be either to a) avoid competition, b) a change in the production schedule, c) major issues during production or d) for being in bad taste in light of tragic events. Since the ongoing COVID outbreak has been tied to so many examples across multiple mediums, it has received its own page for works affected (see below).

Not to be confused with Trailer Delay, where Development Hell causes a big gap in the original and final release dates. Anything on The Shelf of Movie Languishment is a victim of this. See Delayed Release Tie-In for when this trope affects The Merch.

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Example subpages:

• COVID-19 Pandemic Related Examples
• Film

Other examples

Anime & Manga

• The premiere of the fourth season of My Hero Academia was delayed from its initial October 12, 2019 airdate in some regions due to coverage of Typhoon Hagibis in Japan.
• Pokémon: The Series:
  • The American release of Pokémon: The First Movie was scheduled for November 12, 1999, but ended up getting bumped two days ahead.
  • This page shows what the Japanese schedule of the show would have been like if the incident involving "Electric Soldier Porygon" had not happened.
• Doraemon: The 39th film, Doraemon: Nobita's Chronicles of the Moon Exploration is having a tough time getting into South Korea due to rising historical anti-Japanese sentiment (for some reasons) as well as the anti-Japanese protest that occurred there in July of 2019. After the movie was postponed from August to October, it was withheld indefinitely and later put on South Korean streaming services and then received a television airing on Champ TV in 2020.
• The Korean premiere of the 127th episode of PriPara was pre-empted the day before it was supposed to air for coverage of the September 2018 inter-Korean summit.
• The sixth episode of Suite Pretty Cure ♪ was originally going to air on March 13th, 2011, but due to non-stop coverage of the Tohoku Earthquake on all Japanese TV channels except for TV Tokyo, it was moved to March 20th, 2011.
• The American premiere of Yu-Gi-Oh! on Kids WB was originally scheduled to air on September 15, 2001, but was pushed back two weeks after broadcasts pertaining to the September 11 attacks pre-empted most programming on the block.
• The Adventures of Peter Pan was going to premiere on January 8, 1989, but due to TV stations pre-empting programming for coverage of Emperor Showa's death, it premiered a week later.
• The North American release of Castle in the Sky was originally going to be released in 1999—according to the trailer on the 1998 VHS tapes of Kiki's Delivery Service and Canadian copies of The Lion King II: Simba's Pride—but Princess Mononoke's failure in American theaters against Pokémon: The First Movie cancelled the plans. It would be released on home video in April 2003.
• Scott Pilgrim Takes Off was originally given a generic "2024" release year when first announced, but was moved up to November 17th, 2023.

Asian Animation

• The Pleasant Goat and Big Big Wolf season Mighty Little Defenders was originally slated to premiere in the summer of 2018, but the production team was forced to change the episodes so that they were less violent. This caused the season to be delayed to January 2019.
• Simple Samosa: According to series creator Sanjiv Waeerkar's LinkedIn page, Season 2 was originally going to be released during the Diwali holiday in 2019. It was moved to January 20, 2020 for unknown reasons.

Comic Books

• John Ridley's The Other History of the DC Universe, a miniseries where key moments in the DC Universe are shown through the point of view of minority characters such as Black Lightning, was originally slated to be released in December of 2018. However, it got delayed twice, first to January 30, 2019, then the date became indefinite. The new date was eventually to be November 24, 2020.

Literature

• The second Kire book was set to be released 20th of August 2015 but came out 6 days earlier.
• Star Wars: Queen's Peril was originally scheduled for release on May 5, 2020, but was pushed back to June 2.

Live-Action TV

By Network:

• This happened with three PBS Kids shows in the 1998-99 fall season: The Noddy Shop was supposed to premiere in June 1998 and Teletubbies was supposed to premiere in September of 1998, but when Teletubbies became a Sleeper Hit in the United Kingdom, PBS moved the premiere to April 1998, and The Noddy Shop moved into the September 1998 slot that Teletubbies originally occupied. Zoboomafoo was also slated for a September 1998 premiere, but the show instead premiered in January 1999.
• Following the death of Elizabeth II, the BBC suspended most of its comedy programs across all platforms. This meant that the new series of Have I Got News for You and the final series of Mock the Week were moved to the Friday following the period of official mourning.

By Series:

• The premiere of 24 was originally going to be on October 30, 2001, but was put back a week as a result of the 9/11 attacks.
• The Disney Sunday Movie: The series was to have presented Robin Hood (1973) on March 16, 1986, but was postponed to April 27 to make way for a scheduled speech by Ronald Reagan about the situation in Nicaragua. Instead, the show aired in a 1-hour format and presented Winnie the Pooh and the Honey Tree along with a couple of classic cartoons.
• An episode of Haven was originally going to air in December 2012, but it was pulled in in light of the Sandy Hook shooting due to the episode featuring high school violence and later aired the following month.
• Hawkeye (2021) episodes #2-6 each saw their Disney+ release dates bumped up one week earlier after Lucasfilm announced that The Book of Boba Fett would premiere on Disney+ on December 29, 2021, the same day that Marvel Studios planned to drop the Hawkeye finale. Under the new schedule, the streamer would post the second Hawkeye episode at the same as the first on November 24, 2021, and would finish the series on December 22.
• The Mandalorian Season 3 had a premiere timeframe of ""Late 2022 or Early 2023" listed in the May 2022 issue of Vanity Fair. A few weeks later, Star Wars Celebration narrowed the date down to February 2023. Then, on December 1, Disney+ pushed the premiere to March 1.
• Marvin Marvin was originally supposed to premiere in 2013, but it was pushed ahead to November 24, 2012.
• The final two episodes of Nicky, Ricky, Dicky, and Dawn were originally slated to air on August 4th, 2018, but were moved to the day before so that The Loud House episode "Be Stella My Heart" served as the Lead In.
• Novoland: Eagle Flag was meant to premiere on 4 June 2019. It was abruptly pulled from the schedule less than twenty minutes before the first episode was supposed to air. It aired on 16 July 2019 instead, with no explanation of why the date was changed so suddenly.
• Star Trek: Discovery was first scheduled for a January 2017 debut, pushed back to May, then indefinitely, then to September the same year.
• Star Trek was originally supposed to premiere on September 15, 1966, as shown in this surviving NBC promo. The week of September 12-18 was planned to be the premiere week of the 1966-67 season across all three networks, but NBC (in an effort to get a leg up on the competition) pushed several shows, including Star Trek, to air a week in advance (as can be seen in this surviving advertisement◊ from TV Guide). As a result, Star Trek premiered on September 8 - or, in Canada, on September 6. (CTV had been planning to air Star Trek on the 13th and simply pushed it up a week when NBC did.)
  • The final episode "Turnabout Intruder" was originally scheduled to air on March 29, 1969, however newscasts of the death of former President Dwight D. Eisenhower changed this. The episode was not broadcast until June 3, 1969.
• Super Sentai series Shuriken Sentai Ninninger was originally advertised to start on 15 February 2015, but ended up premiering on 22 February because the penultimate episode of its predecessor, Ressha Sentai ToQger was pre-empted for news coverage about Islamic State militants murdering a Japanese journalist.
• The Twilight Zone (1959) episode "Night Call" and The Alfred Hitchcock Hour episode "Body in the Barn" were originally scheduled to air on November 22, 1963 but, like all other American network programming, were rescheduled due to the assassination of John F. Kennedy earlier that day. They eventually aired on February 7, 1964 and July 3, 1964 respectively. Similarly, The Outer Limits (1963) episode "Nightmare" was supposed to air on November 25, 1963 but it was delayed for a week due to the coverage of President Kennedy's state funeral.
• The second The ABC's of COVID-19: A Sesame Street Town Hall special was planned for May 30, 2020, but was pre-empted by coverage of protests over George Floyd's death and was rescheduled to June 6, 2020. When that incident became more prominent in the media, another Sesame Street town hall called Coming Together: Standing Up to Racism pre-empted the special's slot. The second special would eventually air on June 13th, 2020.
• Donkey Hodie had this happen twice with its' book adaptations:
  • The book adaptation of "Good Dog School" was originally supposed to be released on June 28th, 2022, but was moved to July 12, 2022.
  • "The Golden Rainbow Day!", a book adapting "The Golden Crunchdoodles", was originally supposed to release August 30, 2022, the same day as "Donkey's Awesome, Extra Fun, Very Good Day!", but was moved to September 13, 2022.

Networks

• The Disney Channel was originally to launch on April 11, 1983, but it was moved to a week later so it wouldn't provide competition for that year's Academy Awards ceremony.
• G4TV was going to become the Esquire Network on April 22, 2013, but the rebranding was moved to later that summer so the network can have more original series upon its launch. However, plans were changed so that G4 got removed on January 2014 and the Esquire Network took over the Style Network on September 23, 2013.
• XM Satellite Radio (now SiriusXM) was going to launch on September 12, 2001, but due to the attacks the previous day, it was delayed to September 25.

Professional Wrestling

• The Ring of Honor-CZW feud had roots in the very founding of the former company but was kicked off by a venue favoring ROH during a double booking and moving CZW's show from the evening to the afternoon, making this an example of release hour change.
• CMLL infamously pushed forward the date of its 82nd Aniversario only to quickly have to then move it back to the original date due to backlash from fans on their premises and online.

Theme Parks

• The new big 2024 ride of Europa-Park, "Voltron", had its opening (which was supposed to happen on April 26, 2024) delayed because of technical issues.

Toys

• In February of 2017, toys for Nella the Princess Knight were showcased at Toy Fair in New York, with a fall 2017 release date. The toys in question wouldn't show up until the summer of 2018, although they did appear in the United Kingdom when they were intended to be released.

Video Games

• The remake of the first two Advance Wars on the Nintendo Switch was originally planned for release on April 8, 2022. The then recently started war between Russia and Ukraine caused Nintendo to indefinitely delay the release since releasing a game about wars while a real one had just begun would have been in pretty poor taste. The game also has an early enemy CO whose background has Russian influences, which would have also been in poor taste in lieu of the then current events. The game would eventually be released a year later.
• ANNO: Mutationem was originally announced to be released in 2020 until the developers decided to rework the original layout of it being a SCP Foundation game to avoid issues with the original IP and underwent further development before being released in March 2022.
• Nintendo's Donkey Kong Country: Tropical Freeze and Super Mario 3D World were set to release in November and December 2013, respectively. Later, the release months were swapped, with 3D World releasing in November and Tropical Freeze in December. A few months later, Tropical Freeze was announced to be delayed until February 2014, to reduce the chance of the games cannibalizing each other's sales.
• Doom Eternal was originally planned to release on November 22, 2019 but the Xbox One, PS4, and PC versions were delayed to March 20, 2020 with the main reason being that development team needed more time to polish the game, with Pete Hines also revealing in an interview post-launch that the reception of Fallout 76 played a major factor as well. Meanwhile, the Switch release never even received a date until a few weeks prior to releasing on December 8, 2020.
• Dungeons of Aether was delayed from October 25th 2022 to February 28th 2023, with the related trailer giving "we need a little more time" as a reason.
• Scott Cawthon is infamous for doing this with the Five Nights at Freddy's sequels:
  • Five Nights at Freddy's 2 was first hinted at with a teaser image saying "Grand Re-Opening!" with 2015 beneath it. However, then Scott decided to move the release to December 25th, 2014. Then he decided he was going to drop a demo on November 10th, but due to complications on getting it out, opted to just release the full game right then and there.
  • Five Nights at Freddy's 4 was originally going to be released on Halloween 2015. Then Scott pushed it ahead to August 8th before ultimately releasing it on July 23rd, almost three months before its supposed release. He did ultimately decide to keep the original date special by releasing a Halloween Edition of the game on that date.
• Hogwarts Legacy was originally supposed to release at an unspecified date in Q4 of 2021. However it was announced in January of that year that it had been pushed back to an unspecified date in 2022. No specific reason for the delay was given, but it was assumed to be COVID-19 related production issues, though Fantastic Beasts: The Secrets of Dumbledore own COVID-19 related delay from late 2021 release to July 2022 was also thought to play a factor. The game would eventually get a February 2023 release date for the PS5, XBXS, and PC, with other versions releasing throughout the rest of the year.
• Limbus Company was originally supposed to be released in Winter 2022, but in the same announcement where the exact intended date was revealed, it also announced a delay to February 2023. Whereas the post makes it clear that, because it was their very first game that was ported to the app stores as well instead of just a Steam release, more time was deemed to be necessary to prevent a Porting Disaster. The post doesn't state it anywhere, but it is commonly believed that this delay was also due to Goddess of Victory: NIKKE having an extremely buggy release just two weeks earlier (November 4 vs the announcement at November 18) that caused the developers to steer away from a hasty Christmas Rushed release. It ended up being for the better, because, after a few startup issues were patched quickly after, the finished product doesn't show any signs of bugs.
• Super Smash Bros. Brawl was originally scheduled to release in the Americas on December 3, 2007, ahead of the Japanese release. It was first delayed until February 10, 2008, and then later delayed again to March 9. The Japanese release date was also changed from January 24, 2008 to January 31.
• The Last of Us Part II was scheduled to release on February 21, 2020, but it later got moved to May 29, 2020, with director Neil Druckmann saying that the development team chose to have more time to complete the game. Then the COVID-19 Pandemic hit and it was announced the game was indefinitely delayed. However, it ended up being released in June for damage control after a huge Content Leak.
• The Legend of Zelda:
  • The North American release for The Legend of Zelda: The Minish Cap was moved from late 2004 to early 2005, as a way of preventing it from interfering with the Nintendo DS's launch. This also allowed a few bugs from the European release to be fixed.
  • The Legend of Zelda: Tears of the Kingdom was originally slated for a 2022 release in the E3 2021 teaser trailer, before it was announced in March 2022 that the game would be delayed to Spring of 2023, which would later be solidified as May 12, 2023.
• Metal Gear Rising: Revengeance was originally set for a late 2012 release, but was pushed back to February 2013.
• Parkasaurus: Sea Monsters was originally slated for spring 2022, but ended up being released on August 11th.
• Rayman Legends was originally going to come out in February 2013 exclusively on Wii U, but thanks to the console's low sales and ZombiU underperforming, Ubisoft made the decision to port the game to other platforms. Despite the Wii U version already being complete, the company's desire to have a simultaneous release on all platforms pushed the game's release into September, much to the distaste of fans and the game's developers. Fans lamented the poor choice of new release date, which put it against larger franchise releases like Grand Theft Auto V, as well as wondered why it wasn't further delayed into February 2014, when additional PS4 and Xbox One versions released.
• South Park: The Stick of Truth was scheduled for April 2013, but after THQ went bankrupt, Ubisoft took over production. Then it was set for a Fall/Winter release, until being delayed to March 4, 2014. The delays inspired a gag on the show's three-episode tie-in arc where the game gets plugged at the very end, only for Butters to show up snarking at it supposedly coming soon.
  Butters: Yeah. And if you believe that, I've got a big floppy wiener to dangle in your face!
• Xenoblade Chronicles 3 is a rare example of a work getting an earlier release date than originally slated. It was originally announced for September 2022 when revealed in that year's February Nintendo Direct, before a new trailer in April gave it a new release date that pushed it forward to July 27th (though Special Edition copies still wouldn't ship until September). This was presumably done not to overlap with the release of Splatoon 3, with it being widely theorized that the two games may have outright swapped release dates so the latter could get more development time, but this has never been confirmed.
• YIIK: A Post-Modern RPG was at first set for release near the end of 2015. The developers then decided they wanted to make additional improvements and pushed it for a release in Summer 2016. When that didn't happen, the makers went silent on any further announcements until the game was fully completed, with it eventually releasing on January 17, 2019.

Web Animation

• The Kickstarter campaign for The Rhino and the Redbill stated that the pilot would premiere in February 2021. Because of the pandemic, it was delayed to the year after.
• The 15th episode of Sublo and Tangy Mustard was originally planned for release on the first week of June 2020, but due to the ongoing George Floyd protests making the episode too close to current events, it was delayed for two weeks, finally coming out on June 18.

Web Original

• The Star Wars-based game show Jedi Temple Challenge was supposed to premiere on YouTube's Star Wars Kids channel June 3, 2020, but presenter/producer Ahmed Best pushed it back a week to June 10 out of respect for the worldwide protests against police brutality in the wake of the murder of George Floyd, which were dominating the media at the time.

Web Video

• Economy Watch: Season 2 was scheduled to end on December 23, 2022, but was delayed by 2 days. This is also an example of Schedule Slip.

Western Animation

• The Adventures of Paddington was supposed to premiere in April 2020 in the United Kingdom, but got bumped up a month earlier to March 2020.
• Amphibia's season two finale, "True Colors", was pulled from its original airdate of May 1, 2021 less than eighteen hours before its planned airing due to a "scheduling shift". In actuality, according to creator Matt Braly and other showrunners at Disney TVA, this was purely because Disney had reneged on its approval of the episode's final scene (wherein the Big Bad stabs a main character through the chest). When the episode received its new airdate of May 22nd, it ultimately wasn't edited, but instead came with a Content Warning and a shift to primetime from the show's usual morning slot with the addition of the show's Season 3 intro after the end credits (as said opening shows that the villain put the character in question under life support).
• The reboot of Ben 10 had had its American premiere changed three times: from February 2017 to April, then from April to March, and finally from March back to April, finally premiering on April 10, 2017.
• ChalkZone was originally going to premiere in September/October 2000 after the first episode premiered on December 31, 1999 as part of Nick New Year's, but for unknown reasons was delayed until March 2002. To fill in the gap, Nickelodeon began airing reruns of Pinky and the Brain in place of ChalkZone's Fall 2000 premiere.
• The Drawn Together episode "Terms of Endearment" was going to air in November 2004, but it was pulled due to a scene satirizing the horse-riding accident that paralyzed Christopher Reeve, whose death was announced shortly before the show premiered. The show was rescheduled for January 2006, but was almost pulled again when Reeve's widow announced she had a terminal illness, though ended up airing as planned. Strangely, Comedy Central reran the episode the week it was revealed she died.
• Ed, Edd n Eddy was originally slated to premiere on November 7, 1998. However, production issues led to its premiere being delayed until January 4, 1999.
• Family Guy:
  • "Jesus, Mary & Joseph!" and the American Dad! episode "Minstrel Krampus" were supposed to air December 16, 2012, but both were delayed in light of the Sandy Hook Elementary School massacre. The former was bumped ahead a week while the latter was delayed until December 2013 (due to it actually featuring gun violence). To compensate, the American Dad! episode "National Treasure 4: Baby Franny: She's Doing Well: The Hole Story" was bumped ahead.
  • The Night of the Hurricane three-part special was scheduled for May 2011 was delayed due to the southern U.S. being ravaged by a tornado outbreak that killed over 300 people. The saga eventually aired in October. Ironically, this was when the effects of an ACTUAL hurricane, Irene, which hit that August, were still fresh in the mind of the people living in the general area the three shows take place.
  • "A Shot in the Dark" was originally to air on November 15, 2015, but was replaced by "Peter's Sister" (which was originally to air the following week) following the ISIS attacks in Paris two days prior (due to the plot of Peter shooting somebody and being charged with a hate crime), and then it got bumped again due to the San Bernadino shooting, making the final air date December 13, 2015.
• Jorel's Brother: The series was originally slated to premiere in the second semester of 2013 with a 13-episode first season. Some Cartoon Network commercials even announced the show's premiere during that year, though using only clips of the pilot, as the actual episodes hadn't been animated yet. Later, the first season was doubled to 26 episodes, and the show was postponed to 2014, airing its first episode in September.
• The KaBlam! special Life With Loopy Birthday Gala-Bration (which was produced as a stand-alone special and is not in the official episode count) was originally announced for an October 23, 1998 premiere date. For unknown reasons, Nickelodeon decided to move it up to August 7, 1998.
• Kung Fu Panda: Legends of Awesomeness was originally supposed to premiere in 2010, but for unknown reasons, it was pushed back to November 2011.
• The Legend of Vox Machina: The special was intended to debut in Fall 2020 as stated in the original Kickstarter. Extending the project into a full series put this in jeopardy, and production delays caused by the COVID-19 Pandemic meant the series was delayed by over a year to February 2022. In December 2021, the date was moved up a week to January 28th, 2022.
• The Loud House:
  • The special "Tripped!" had a bad case of this. At first it was going to air on May 4th, 2018, but Nickelodeon delayed it for unknown reasons. It was then moved to May 25, 2018, and was delayed again because of Nickelodeon wanting to air the last 5 episodes of The Thundermans all in the same day. It was then shuffled three days later to May 28, 2018 before being pulled again to show re-runs of the same episodes of The Thundermans. It finally aired on June 25th, 2018.
  • This trope also happened with The Valentine's Day Episodes "Singled Out; Brave The Last Dance". This pair was supposed to air on February 8, 2020, but got moved to a week later to compete with Z-O-M-B-I-E-S 2, which was airing that same weekend. The February 8, 2020 slot instead went to a new episode of SpongeBob SquarePants^note Which was "Who R Zoo; Biddy Sitting".
  • Some TV listings had the Extra-Long Episode "Schooled!" scheduled for September 7, 2020 (Labor Day). It was then moved to September 11, 2020.
• My Little Pony: Pony Life was scheduled to premiere on Discovery Family on June 13, 2020, with barely any advertising at that, as the only way people knew this was going to happen were TV guides. Come a few days later, and it became clear that they had pushed the air date to a more suitable air date. This didn't stop Treehouse TV in Canada from airing the show early, though before the show eventually came out in America on November 7.
• Disney's One Saturday Morning was originally going to premiere on September 6, 1997, but due to ABC covering Princess Diana's funeral, the premiere date was moved to the following week.
• The Hungarian and Czech dubs of The Owl House were going to premiere on January 2, 2021, as Disney Channel Eastern Europe runs the same feed in both countries. However, the show was removed from the schedule before it could even air, allegedly due to concerns over LGBTQ+ content in a children's show, which is illegal in Hungary. These "banned" dubs were made available internationally in January, 2022 on Disney+, and they came out in their respective countries in June when Disney+ launched in those areas.
• PAW Patrol's "Dino Rescue" arc, which introduced new team member Rex, was supposed to air on July 10th, 2020. But following the episode's first airing being in Canada rather than the US, it aired on June 26th.
• Phineas and Ferb: The episode "Rollercoaster: The Musical!", along with the Fish Hooks episode "Fishing for Compliments: The Albert Glass Story", were originally scheduled for January 28, 2011, but were pushed forward to January 29 a few days before airing to avoid competing against the SpongeBob SquarePants event, "Legends of Bikini Bottom".
• The Recess Christmas Episode "Yes, Mikey, Santa Does Shave" was set to premiere on December 19, 1998. Due to ABC pre-empting One Saturday Morning for news coverage of Bill Clinton's impeachment trial, the episode had to be moved to December 26, making it a rare post-Christmas Christmas Episode.
• The Rocketeer was slated to premiere in January 2020, but it got bumped two months ahead to November 2019.
• The premiere of Rugrats on Nick on CBS, which was originally February 1, 2003, was delayed until February 8th, 2003 on affiliates that aired the show after 9:00AM EST due to coverage of the Columbia Space Shuttle explosion pre-empting most of the block that day. Those that aired the show that day either aired it without incident, or if it aired at 9AM EST, had it interrupted partway through for the aforementioned news coverage. However, one station which aired it at the time of the explosion, WDJT, aired it, as well as the program that followed, without interruptions.
• The Simpsons:
  • "Stop or My Dog Will Shoot" was supposed to air on April 29, 2007, but due to the Virginia Tech Massacre that occurred recently, it was pushed back by two weeks. "The Boys of Bummer" was pushed ahead to air in its place.
  • "The Father, the Son, and the Holy Guest Star" was intended to air on April 10, 2005, but it was bumped back to May 15 due to the death of Pope John Paul II. As a result, it was bumped ahead and become the season finale, while a repeat of "On a Clear Day I Can't See My Sister" aired in its place (it was going to air later that night anyway). "The Girl Who Slept Too Little", originally scheduled for that date, was delayed until the next season.
  • "Homer and Apu" was originally going to air on January 27, 1994, but the effects of the Northridge Earthquake caused production to be delayed and it was moved to February 10 (a repeat of "Dead Putting Society" aired instead).
  • "My Big Fat Geek Wedding" was scheduled for April 4, 2004, but it was delayed by two weeks because the voice actors went on strike over pay cuts.
  • "The Incredible Lightness Of Being A Baby" was scheduled for April 7, 2019, but it was delayed for over a whole year to April 19, 2020. While the official reason has never been disclosed, a likely reason is because that episode is a direct continuation of the theatrical short "Maggie Simpson in "Playdate with Destiny"", which was added to Disney+ nine days before the episode aired.
  • "Treehouse of Horror XXXI" was scheduled to air on October 18, 2020, but was rescheduled at the last minute to November 1, due to playoff baseball. This will be the first time in 10 years that it will air after Halloween. It still aired as scheduled in Canada.
  • The series premiere went through this. "Some Enchanted Evening" was meant to air in Autumn 1989 as the first episode, but there were so many problems with the animation that it was pushed back to May 13, 1990 so that David Silverman's team could re-animate an estimated 70% of the episode. The show's premiere was pushed back to December 17, 1989 with "Simpsons Roasting on an Open Fire".
• South Park:
  • "Cartman's Mom is Still a Dirty Slut" was originally scheduled for May 20, 1998, but it was moved to April 22 following the negative reaction toward "Terrance and Phillip in: 'Not Without My Anus'". The May 20 date became reserved for "Ike's Wee Wee".
  • "Goth Kids 3: Dawn of the Posers" was supposed to be shown on October 16, 2013, but production was delayed by a week after a blackout at South Park Studios. A repeat of "Scott Tenorman Must Die" was shown in its place.
• The SpongeBob SquarePants episodes "Grandmum's The Word" and "Old Man Patrick" were both originally given a premiere date of March 27, 2018, but they were moved ahead to February 16th, 2018 so Nick could use it to counter-program the premiere of the Disney Channel's original movie Z-O-M-B-I-E-S on the same day. Coincidentally, another unaired episode, "Bunny Hunt", was shown on the date of the original premiere.
• A whole season of Star Wars Detours has already been made and it was supposed to premiere some time in 2013, but it has been delayed indefinitely. The Disney acquisition of Lucasfilm may have been a factor of the indefinite delay of Detours.
• If the copyright date in the credits is anything to go by, The Brothers Flub was meant to premiere in 1998. It ultimately premiered in January 1999 instead.

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