Art is supposed to be provocative, but that sort of art isn’t intended for primetime hours. Television’s pushed boundaries throughout history, sometimes a bit further than they intended.

Sometimes there are episodes that aged poorly, or just had unintentionally poor timing. For example, last month, the BBC reported that South Park‘s episode from August, parodying Charlie Kirk, was pulled from Comedy Central after Kirk’s death.

From episodes that triggered seizures in children with flashing lights to cartoons that provoked outrage with taboo humor, certain TV shows have earned the rare distinction of being pulled from the airwaves entirely. Here are 19 episodes that have been banned from TV for weird, creepy or straight up good reasons.

1. Pokémon has an extensive list of episodes that have been barred from airing, but the first instance of this happening dates back to their first season in Japan. “Electric Soldier Porygon” was banned worldwide after its 1997 Japanese premiere caused hundreds of children to be rushed to the hospital for a wide range of symptoms related to photosensitive epilepsy, caused by rapid flashing lights. After it aired, the episode was pulled, and Pokémon went on hiatus for a few months.

2. The X-Files took some seriously dark turns throughout its time on the air, but perhaps none were as twisted as the infamous episode, “Home.” The episode started off with the birth and subsequent burial of a deformed infant, and it only got more intense from there. Due to its graphic nature and allusions to incest, the show was eventually barred from airing for three years after it initially ran and earned the show’s first TV-MA rating.

3. Episode 151 of The Twilight Zone, “The Encounter,” became the first episode of the series to get banned. It aired in 1964, but because of the racist stereotypes, slurs, and xenophobic undertones toward a Japanese-American character played by George Takei, it was pulled for 50 years. It eventually returned to the air in 2016.

4. While often heralded as one of the greatest sitcoms of all time, Seinfeld certainly faced its fair share of controversy. That’s especially true about its “The Puerto Rican Day” episode. The show received widespread backlash from the Puerto Rican community due to a scene where Kramer sets a flag of Puerto Rico on fire and then proceeds to stomp on it. Protests erupted at the NBC HQ in New York, and the network decided to pull the episode from syndication.

5. NBC pulled an episode of Hannibal titled “Oeuf.” Per Deadline, the network’s description of the plot was: “a string of family murders takes place and Will (Hugh Dancy) determines they were conducted by each of the families’ missing children, who were abducted and brainwashed into killing their old families for their sinister ‘new family.’” There was speculation that it was pulled due to the Sandy Hook Elementary shooting, though the episode was written prior to that.

6. In Australia, an episode of Peppa Pig was taken off rotation for a reason that probably wouldn’t make sense anywhere else. “Mister Skinnylegs” encouraged kids to make friends with spiders. However, there are plenty of deadly spiders in Australia, prompting a country-wide ban on the episode.

7. The very premise of Fear Factor is odd, but how weird could it get? Well, the Season 6 finale, “Hee Haw! Hee Haw!” was pulled by NBC and for incredibly good reason. The episode’s title alone referenced the donkey-centric challenge where contestants had to drink donkey urine and semen for their cash prize. Bob Greenblatt, who was the head of entertainment at NBC at the time, said, “I reviewed the episode late last week and decided it was a segment we should not air.”

8. MTV pulled the “Comedian” episode of Beavis And Butt-Head. The episode depicted the titular characters burning down a comedy club. After it aired, a 5-year-old boy in Ohio started a fire that left his 2-year-old sister dead. The boy’s mother accused the show of influencing his actions.

9. The Boondocks treaded plenty of taboo topics, yet its satirization of race and stereotypes is what made it such a polarizing show that remains beloved. “The Story Of Jimmy Rebel,” an episode from the third season, was banned after its initial airing, although it was later included in the DVD collection. In the episode, Uncle Ruckus befriends a racist white country singer based on Johnny Rebel, a real-life musician who performed songs that supported the KKK and white supremacy. After the Black Lives Matter protests, the episode was pulled from HBO Max’s platform, per Deadline.

10. Around the same time, HBO Max also pulled an episode of Aqua Teen Hunger Force titled “Shake Like Me” from their platform because of insensitive racial stereotypes.

11. Married… With Children had a tendency to get a bit edgy, which undoubtedly sparked some fury among certain viewers. However, the episode “I’ll See You In Court” was ultimately pulled by FOX before it aired. The episode involved Al and Peggy discovering that the owners of a motel filmed a sex tape of them, and an ensuing court battle. It was a tame episode compared to many others, but for safe measures, FOX decided to pull the plug. Certainly one of the weirder cases in this list.

12. South Park has had several episodes banned entirely due to its depiction of the Prophet Muhammad. “Super Best Friends,” “Cartoon Wars Part 1,” “Cartoon Wars Part 2,” “200” & “201” were all banned from airing or heavily edited with some still unavailable to view on streaming services to this day.

13. As innocuous as SpongeBob Squarepants might seem, it has also faced some retrospective backlash for inappropriate themes. “Mid-Life Crustacean” included a “panty raid” scene, which didn’t receive much pushback when it first aired. However, in recent times, it has been taken off rotation and removed from Paramount+ because Nickelodeon deemed it not kid-appropriate.

14. A storyline in Sesame Street became a myth of sorts after it never made it beyond the test screening. The creators tried to tackle the subject of divorce through Mr. Snuffleupagus delicately, but it never actually made it to TV because of the response it received from pre-schoolers before it aired. According to Time, some of the kids in the test screening cried and worried that their own parents would get a divorce.

15. It’s Always Sunny In Philadelphia had a few episodes pulled from streaming services, and each had similar reasons as the others: Blackface. “America’s Next Top Paddy’s Billboard Model Contest,” “Dee Reynolds: Shaping America’s Youth,” “The Gang Recycles Their Trash,” “The Gang Makes Lethal Weapon 6,” and “Dee Day” were all taken off of Hulu.

16. As one of the longest-running television shows in history, it only makes sense that The Simpsons had a few episodes that were pulled from being aired. “Stark Raving Dad” saw Homer meeting a man who claims to be Michael Jackson inside a mental health facility, with the pop star actually lending his voice to the show. However, shortly after Leaving Neverland aired on Netflix, Disney+ removed the episode from its platform.

17. An episode of Teletubbies called “The Lion & The Bear” was taken off the air for a while after it was deemed too frightening for children. The cardboard depictions of the lion and the bear, paired with eerie background music, reportedly resulted in the show getting pulled from various networks across the globe, while the BBC heavily edited the scenes from that episode.

18. The depiction of a suicide in Hawaii Five-0′s second season episode titled “Bored, She Hung Herself” led the network to pull it entirely from future reruns and its DVD release. The episode dives into an investigation into a woman’s suicide by auto-asphyxiation as part of a health routine. Apparently, a viewer allegedly died after attempting something similar and it was pulled from syndication.

19. Although available on YouTube, there’s one episode of Bluey that won’t appear on Disney+, and truly, there’s never been an explicit reason given for its absence. However, the episode “Dad Baby” shows the dad Bandit pretending to be pregnant. There’s no graphic imagery of anyone giving birth in this episode, but apparently, its premise was enough to force Disney to shy away from airing it on their platform.