Title: Teenage Mutant Ninja Turtles (1987 TV series)
Content:  Teenage Mutant Ninja Turtles (initially known as Teenage Mutant Hero Turtles in the UK and some European countries) is an American animated television series produced by Murakami-Wolf-Swenson and the French company IDDH Groupe. It was the first television adaptation of the Teenage Mutant Ninja Turtles comic books by Kevin Eastman and Peter Laird. The pilot was shown during the week of December 14, 1987 in syndication as a five-part miniseries, and the show began its official run on October 1, 1988. The series ran until November 2, 1996, when it aired its final episode. Set in New York City, the series follows the adventures of the Teenage Mutant Ninja Turtles and their allies as they battle the Shredder, Krang, and numerous other villains and criminals. The property was changed considerably from the darker-toned 
Title: Teenage Mutant Ninja Turtles
Content:  Eastman and Laird's Teenage Mutant Ninja Turtles premiered in May 1984, at a comic book convention held at a local Sheraton Hotel in Portsmouth, New Hampshire. It was published by Mirage Studios in an oversized magazine-style format using black and white artwork on cheap newsprint, limited to a print run of 3,250 copies. Through a clever media kit that included a press release in The Comics Journal No. 89 and a full-page ad placed in Comic Buyer's Guide #547, the public's interest was piqued and thus began the Turtle phenomenon. The small print runs made these early comics and trade magazines instant collector items, and within months, they were trading for 
Title: Teenage Mutant Ninja Turtles in film
Content:  The fictional comic book team known as the Teenage Mutant Ninja Turtles created by Kevin Eastman and Peter Laird have appeared in six feature-length films since their debut. The first film, titled Teenage Mutant Ninja Turtles, was released in 1990 at the height of the franchise's popularity and was a commercial success. The success of the film garnered two direct sequels, Teenage Mutant Ninja Turtles II: The Secret of the Ooze in 1991 and Teenage Mutant Ninja Turtles III in 1993. During a revival of the franchise prompted by the successful 2003–2009 TV series, a separate computer-generated imagery (CGI) film titled TMNT was released in 2007. A fifth film by Paramount Pictures and Nickelodeon Movies was released on August 8, 2014, and served as a reboot to the original live-action films. A sequel, Teenage Mutant Ninja Turtles: Out of the Shadows, was released on June 3, 2016. The six films have grossed $1.2 billion worldwide. A seventh film, which will be a CGI reboot, is in development and is scheduled to be released on August 11, 2023.
Title: Teenage Mutant Ninja Turtles
Content:  In August 2011, IDW Publishing launched a new Turtles comic series, with Eastman as co-writer and illustrator. In September 2012, Nickelodeon launched a computer-animated series,  which ran for five seasons and ended in 2017. A new live-action Turtles film, produced by Platinum Dunes, Nickelodeon Movies, and Paramount Pictures, directed by Jonathan Liebesman and produced by Michael Bay, was released on August 8, 2014. It received negative reviews from critics and fans, but was a box-office success. A sequel, Teenage Mutant Ninja Turtles: Out of the Shadows, directed by Dave Green, was released in June 2016. A new TV series from Nickelodeon, Rise of the Teenage Mutant Ninja Turtles, launched in 2018 and ran for two seasons. A film sequel to the series for the streaming service Netflix was announced in 2019. Two additional films, an animated film produced by Seth Rogen and a live-action reboot produced by Bay are in development.
Title: Teenage Mutant Ninja Turtles (Mirage Studios)
Content:  Teenage Mutant Ninja Turtles is an American comic book series published by Mirage Studios between 1984 and 2014. Conceived by Kevin Eastman and Peter Laird, it was initially intended as a one-shot, but due to its popularity it became an ongoing series. The comic created the Turtles franchise of five television series, six feature films, numerous video games, and a range of toys and merchandise. Over the years, the Turtles have appeared in numerous cross-overs with other independent comics characters such as Dave Sim's Cerebus, Bob Burden's Flaming Carrot, Stan Sakai's Usagi Yojimbo, Image Universe series including Erik Larsen's Savage Dragon and Todd McFarlane's Spawn, and Frank Miller's run on Daredevil, of which the series was originally a parody. In October 2009, Peter Laird sold the rights to the Teenage Mutant Ninja Turtles franchise to Viacom, the parent company of Nickelodeon. Mirage Studios was shut down on September 19, 2021. In 2011, IDW Publishing secured the rights to publish a new series and reprint the older comics.
Title: Teenage Mutant Ninja Turtles (1990 film)
Content:  Following the huge success of Teenage Mutant Ninja Turtles at the box office, several films were created. A year later, Teenage Mutant Ninja Turtles II: The Secret of the Ooze was released in theaters, and was a commercial success. In 1993, Teenage Mutant Ninja Turtles III was released in theaters, to a smaller box office take. After a 14-year absence from theaters, a fourth film, TMNT, was released in 2007, though unlike the trilogy, this was a CGI animated film. Seven years later, a reboot, also with the title Teenage Mutant Ninja Turtles, was released in 2014, and a sequel titled Teenage Mutant Ninja Turtles: Out of the Shadows was released in theaters on June 3, 2016. The image of the four heroes in the movie's poster served as a Continue Screen of their game Teenage Mutant Ninja Turtles: Turtles in Time.
Title: Rise of the Teenage Mutant Ninja Turtles
Content:  Rise of the Teenage Mutant Ninja Turtles (also known as Rise of the TMNT for short) is an American 2D-animated television series based on the fictional ninjutsu team, the Teenage Mutant Ninja Turtles. The series premiered as a sneak peek on Nickelodeon on July 20, 2018. Developed and executive produced by Andy Suriano and Ant Ward, the series aired on Nickelodeon in the United States from July 20, 2018 to August 7, 2020. The series was announced by Nickelodeon on March 2, 2017, and was initially scheduled to run for at least 26 episodes. This re-imagined series has the Turtles go on new adventures as they seek to unlock the mystical secrets of New York City and their own powers to save the world from evil. On July 27, 2018, Nickelodeon renewed the series for a second season consisting of 26 episodes before the official debut of the first season. Partway into the production of this season, however, it was shortened in length to 13 episodes.
Title: Teenage Mutant Ninja Turtles (arcade game)
Content:  Teenage Mutant Ninja Turtles, released in Japan as TMNT: Super Kame Ninja (T.M.N.T. 〜スーパー亀忍者〜) and in Europe as Teenage Mutant Hero Turtles, is a 1989 beat 'em up arcade game released by Konami. It is based on the Teenage Mutant Ninja Turtles franchise, including the first animated series that began airing two years earlier. In the game, up to four players control the titular Ninja Turtles, fighting through various levels to defeat the turtles' enemies, including the Shredder, Krang and the Foot Clan. Released during a high point in popularity for the Ninja Turtles franchise, the arcade game was a worldwide hit, becoming the highest-grossing dedicated arcade game of 1990 in the United States and Konami's highest-grossing arcade game. Versions for various home systems soon followed, including the Nintendo Entertainment System. A sequel, Teenage Mutant Ninja Turtles: Turtles in Time, was released in 1991.
Title: Teenage Mutant Ninja Turtles
Content:  The Turtles have appeared in six feature films. The first three are live-action features produced in the early 1990s: Teenage Mutant Ninja Turtles (1990), Teenage Mutant Ninja Turtles II: The Secret of the Ooze (1991), and Teenage Mutant Ninja Turtles III (1993). The Turtles were played by various actors in costumes featuring animatronic heads, initially produced by Jim Henson's Creature Shop. The fourth film, a CGI-animated film titled simply TMNT, was released in 2007. A reboot, also titled Teenage Mutant Ninja Turtles produced by Platinum Dunes, Nickelodeon Movies, and Paramount Pictures, directed by Jonathan Liebesman, and produced by Michael Bay, was released in 2014. A sequel titled Teenage Mutant Ninja Turtles: Out of the Shadows was released in 2016. A crossover film, called Batman vs. Teenage Mutant Ninja Turtles, was released in 2019.
Title: Teenage Mutant Ninja Turtles (2013 video game)
Content:  Teenage Mutant Ninja Turtles is a 2013 video game published by Activision and developed by Magic Pockets, based on the 2012 Teenage Mutant Ninja Turtles TV series. It was the first video game to be based on the Nickelodeon show, featuring several villains from the show's first season. The digital versions of the game, alongside other Teenage Mutant Ninja Turtles games published by Activision, were pulled from all digital storefronts in January 2017 as they chose not to renew the license. The Nintendo 3DS version was later bundled on a single cartridge with Teenage Mutant Ninja Turtles: Danger of the Ooze and was released as Teenage Mutant Ninja Turtles: Master Splinter's Training Pack on November 3, 2015, by Abstraction Games.

Question: when did teenage mutant ninja turtles come out?
Answer: 1984.