Nicktoons and Nick Jr. have their own pages.
- Ankama, the producers of Wakfu have serious deadline issues. Firstly, the show was meant to be The Cartoon Of The Game, only the game itself had been in closed beta before the cartoon aired. Secondly, the first season aired with significant gaps between episodes, sometimes as long as three months, because Ankama couldn't get it ready on time. Their deadline issues seem to be motivated by perfectionism rather than laziness, given the consistent quality when they do release something.
- Futurama had an erratic schedule during its original run, which resulted in the third produced season airing as two different seasons. The DVD releases were ordered by production, as a result of the confusion.
- Averted with Comedy Central's run of the series, both seasons consisted of 26 episodes, so each season was spread across two years.
- Per the episodes' commentary track, "A Tale of Two Santas" was set to air in December 2000, but was delayed as Fox executives didn't want a repeat of complaints, similar to what happened with "Xmas Story".
- Young Justice (2010) aired its first 9 episodes between January and March 2011. Episode ten aired in September, followed by a regular schedule until episode 18 in November 2011. Episode 19 didn't air until March 3, 2012. Bizarrely, after the first season finished airing a few weeks later on April 21 (about 15 months after the season premiere), the show immediately proceeded with the second season premiere the following week, before another hiatus, between June 9, 2012, and September 29, 2012....before ANOTHER unscheduled, unannounced hiatus two weeks later, delaying the show (and the entire DC Nation block it was a part of) until January 5, 2013.
- Recess went through a bit of schedule slip during its third and fourth seasons, with long gaps in between episode airings. This was mainly due to the show's staff working on Recess: School's Out.
- Gravity Falls originally had a standard schedule of a new episode every week. Following an expected mid-season hiatus, all consecutive episodes have followed a schedule of every two-to-three weeks. The series aired two seasons over four years.
- The Amazing World of Gumball:
- As of season 2, newer episodes of have been taking very long periods of time to air. This include numerous hiatuses such as a five-month gap between episodes 55 and 56 (February 2013 to June 2013), another between episodes 112 and 113 (March 2015 to July 2015), and a six-month gap between episodes 186 and 187 (February 2017 to September 2017). This lessened in late Season 5.
- "The Stink" was originally supposed to premiere on April 27, 2018, and "The Awareness" was supposed to premiere on May 3, 2018, but were replaced by reruns of Teen Titans Go! and Unikitty!, respectively. The latter episode was accidentally uploaded on VOD services, however, and both aired in the UK and Turkey in September 2018, then finally aired in November in the US.
- Phineas and Ferb was subjected to heavy schedule slip, ultimately resulting in four seasons being stretched across eight years.
- Much like Gravity Falls, Steven Universe had a normal weekly schedule until a mid-season hiatus. In a strange version of this trope, new episodes started being aired in four-to-five episode bursts known as "Stevenbombs" every few monthsnote , with the longest hiatus between them so far being seven and a half months. Here's a comprehensive list.
- The South Park episode "Goth Kids 3: Dawn of the Posers" was supposed to air on October 16, 2013, but a power outage at South Park Studios the night before delayed production and the show missed its deadline for the first time. The episode ended up airing the following week.
- The (originally-intended) Grand Finale of Kim Possible aired on April 8, 2005, actually early in comparison to the rest of the third season, as there were still five more episodes. Four of them were released over the next few months, but the fifth, "And the Molerat Will Be CGI", was rather oddly held back until June 10, 2006, fourteen months after So the Drama - by which point, work on the Postscript Season had begun!
- The third season of Transformers: Robots in Disguise (2015) was originally announced to premiere in January 2017, before being pushed back to April.
- Supernoobs had a very irregular and erratic schedule in America. When it first premiered, it aired one episode per day and this lasted until episode 31 aired in January before going on an unannounced hiatus. It started airing episodes again in August of 2016 with the intention of releasing the rest of the season before it went to hiatus again after two weeks. It released a Halloween episode in October and around four more episodes aired in December. The remaining episodes eventually premiered a year later on Hulu.
- Penn Zero: Part-Time Hero never accomplished that "new episode every single week" despite Disney XD's advertisements. More noteworthy, however, is season 2 premiering over 2 years after the first season ended. The season was also intended to premiere at least a year prior, but slipped due to production difficulties that included finding a new animation studio.
- American Dad!
- The Season 7 episode "Hurricane!" (as part of the Night of the Hurricane! event that would've also crossed over with The Cleveland Show and Family Guy) was originally intended to air on May 1, 2011 and as part of the show's 6th season. However, the 2011 Super Outbreak of tornadoes that occurred a few days prior caused this episode (and the other two Night of the Hurricane! episodes) to be delayed until October 2nd.
- The Season 9 episode "Minstrel Krampus" was originally to air as part of Season 8 on December 16th, 2012. However, it was delayed until December 15th, 2013 (just one day shy of it being a full year after its intended premiere) due to the Sandy Hook shooting.
- The final two episodes of Season 15, "Downtown" and "Cheek to Cheek: A Stripper's Story", were originally scheduled for September 2nd and 9th, 2019 respectively. However, those episodes were pulled and were scheduled for April 20th and 27th, 2020 respectively.
- Teen Titans Go!:
- "Mo' Money, Mo' Problems" was originally slated to air in December of 2017 as part of a 7-day long Christmas marathon and was released to the app around that time, but it was delayed to show two episodes of Steven Universe instead. It was then slated to air on March 23, 2018 and followed by an airing of the entire series of Apple & Onion, but was pulled at the last minute so that the Apple and Onion block began a half-hour earlier. The episode finally aired on June 25th, 2018, alongside three other new episodes.
- "Booty Scooty" and "Riding The Dragon" were supposed to air before "Island Adventures" did, as they are mentioned in the last part of that special. However, they were delayed until the fall due to Cartoon Network wanting to focus on their Summer of Steven event.
- "Serious Business" was intended to be a season 1 episode that aired sometime before "Waffles" (since the background music for The Pee Pee Dance plays in one scene), but the censors finding the episode offensive because it was about the bathroom and asking them to re-write a scene that wasn't funny caused it to become a Season 2 episode.
- Teen Titans Roar! was supposed to come out sometime in 2019, as a response to the then-recent Thundercats Roar controversy. It wound up airing before the premiere of said series as a Spinoff Sendoff, causing it to be dated immediately upon airing as the hate for the show died down.
- "Warner Bros. 100th Anniversary" was slated to air on September 23, 2023, but was replaced by the episode "Intro" at the last minute. It would eventually premiere on October 14, 2023.
- VeggieTales on TV had a third season produced. However, qubo only ever ran the first episode of that season, "Gideon: Tuba Warrior", one time during the summer of 2008 before showing re-runs of the previous 19 episodes. This season would not wind up airing on television until the spring of 2016 in syndication and later on COZI TV, eight years after the last new episode aired on qubo.
- Disney Junior examples:
- The Lion Guard episode "Never Roar Again" was originally slated to air on June 24, 2016, but wound up airing on November 18, 2016, most likely due to a toddler being killed by an alligator at Disney World, because the episode prominently featured the crocodile Makuu. A rerun of an older episode of a different show aired in its place.
- The Doc McStuffins: Toy Hospital episode "First Responders to the Rescue" was going to premiere on September 9, 2017, but was postponed due to Hurricane Irma occurring on the same day; the episode heavily featured a storm. A rerun of an earlier episode aired in its place. The debut of "First Responders to the Rescue" was moved to September 23, 2017, though it still appeared on the app and On Demand on the originally scheduled date.
- The Fancy Nancy episode "Camp Fancy/Nancy's Vanity D'Art" was scheduled for August 24, 2018, but was moved to September 14, 2018 because of Hurricane Lanie; the episode heavily dealed with a rainstorm. A rerun of an old episode of a different show aired in its place.
- One of the episodes of the ReTooled third season of Nina Needs to Go!, "To The Museum", used the old format of the show, with it being a leftover from the second season that aired two years later. This is likely because they already had an episode about a museum, or that this was the original idea for said season 2 episode.
- PBS Kids examples:
- Arthur aired its first eleven seasons pretty regularly. However, when Season 12 premiered, it aired only the first 5 episodes of a 10 episode season during one week in fall 2008. The final five episodes were then burned off during one week in spring 2009. This pattern has continued until Season 18, which started airing its episodes in the same pattern, however, it aired only the first four episodes of the season in fall 2014, holding the fifth until January 2015. The final five episodes were not aired in spring 2015. Episodes 7 and 9 were aired in June 2015 along with episodes 5 and 8 of the next season, while the rest of Season 18 aired in September 2015, and the rest of Season 19 aired sporadically from January to May 2016. Season 20 aired its first 4 episodes in October 2016, and aired its remaining episodes in May-June 2017. The first 3 episodes of Season 21 aired in October 2017, and its remaining episodes aired in February 2018. Bruce Dinsmore, who voices three of the characters, promised more material is forthcoming; the time for it would have been October 2018, but new episodes eventually premiered on May 13th, 2019.
- While most of their shows air all their episodes in the fall for three or more consecutive weeks, Daniel Tiger's Neighborhood airs its episodes in week-long premiere blocks similar to its parent show, with breaks lasting anywhere from two to six months.
- Sid the Science Kid used a similar schedule to Daniel, but the 5 days worth of episodes aired once a month rather than having a long hiatus in between.
- The Cat in the Hat Knows a Lot About That! might be the worst example of this trope for a PBS show, with new seasons airing every four years rather than the yearly seasons other shows get. This stretched out the show's run to 8 years, despite only having 3 seasons.
- Dragon Tales had two instances where this happened:
- In season 2, an episode called "Just the Two of Us; Cowboy Max" was going to air, but was pulled at the last minute by a few PBS stations. While some did show it on the slated date, most affiliates didn't air it until April 1, 2005.
- There was a two-year hiatus between seasons 2 and 3 due to the change from cel animation to digital, as well as the September 11th attacks.note . Adding salt to the wound, half of the season had the format of a new episode airing with an older one.
- PBS has a strange addiction to ordering a whopping 40 episodes for a show's first season. This is both a blessing and a curse. A blessing because it means you get more content, but also a curse because a show's first season could take up to 2 years to finish airing. For example, Ready Jet Go! took 2 years to finish airing its first season. The 40 episode format also makes online distribution a nightmare. Episodes can take months or even years to get added to Prime Video, and the seasons are chopped up into smaller chunks to get more profit. No, Wild Kratts doesn't have 19 seasons; it only has 7.
- Xavier Riddle and the Secret Museum: Thanks to the long hiatuses, it has taken 2 years and 2 months to finish Season 1; premiered in November 2019 and ended in January 2022.
- In an example of a local TV station doing this, this article documents that while most Fox Kids affiliates aired the second season of Batman: The Animated Series in a year, KPTV in Portland spread out the last 20 episodes over the course of 4 years, meaning that only 5 aired on said affiliate per year.
- Kamp Koral was supposed to debut season 2 for the first time in Germany in early 2024. The episodes were scheduled, then pulled, four times in a row.
