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* ''[[Law & Order|Law and Order]]'' – 20 years: September 13, 1990 - May 24, 2010. Fell just short of beating ''Gunsmoke'''s record, though at least they're now tied. Was the longest-running first-run drama series in primetime for all of [[The Noughties]].
* ''Legends in Concert'' – {{Years or months ago|1983}}: A celebrity impersonator revue, opened at the Imperial Palace Hotel and Casino in Las Vegas, NV in 1983 and ran there until 2009—when it moved next door to Harrah's Hotel and Casino and picked up where it left off. Sister productions in Atlantic City, NJ, Branson, MO, and Myrtle Beach, SC have all had decade-plus runs; the latter two are still performing.
<!-- * ''[[The Letter People]]'': First broadcast in 1976, it ran clear into the 1990s. This looks to be one set of sixty 15-minute episodes which were rerun for years, until being updated once in 1996. -->
* ''Love of Life'' – 29 years: (7,315 episodes from 1951–80)
* ''[[Media Watch]]'' – {{Years or months ago|1989|05}}: (Australian media analysis program; first aired in May 1989, isn't going anywhere any time soon)
* ''Monitor'' (– 20 years: NBC Radio weekend show, 1955–75).
* ''Morningside'' (– 21 years: CBC Radio morning show, 9AM-noon weekdays from 1976–97).
* ''The Movie Show'' (running/ ''At The Movies'' – {{Years or months ago|1988}}: ''The Movie Show'' ran since 1986 in Australia; the original hosts switched networks in 2004 and now present ''At The Movies'', which is the same show in all but name).
* ''[[Mr. Dressup]]'' (– 29 years: Canadian children's show, 1967–96).
* ''[[Neighbours]]'' (since– {{Years or months ago|1985}}: Since 1985, with 5,000+ episodes)
* ''[[The Oprah Winfrey Show]]'' – 25 years: (1986-2011)
* The London production of ''[[The Phantom of the Opera]]'' – {{Years or months ago|1986}}: The London production has been running since 1986; the Broadway staging since 1988.
* ''The Phil Donahue Show'' – 30 years: (1967-96 on national TV, 3 years on Dayton, Ohio local TV) The show that inspired most [[Talk Show]]s after it, including Oprah and Sally Jessy Raphael.
* ''Play School'' (– 24 years: BBC children's show, 1964–88. Inspired other, similar long runners like ''Play School'' (Australia) and ''Polka Dot Door'' (Canada).
* ''[[Poirot]]'' (first– 22 years: First episode shown in 1989, an occasional break in the 1990s and 2000s and a final series scheduled for 2011).
* ''The Polka Dot Door'' (– 22 years: Canadian children's show, 1971–93. One of the earliest programmes on TVOntario (CICA-TV, founded 27 September 1970).
* ''[[Queen for a Day]]'' (– 20 years: [[Game Show]], 1945–64 and 1969–70; 20 years).
* ''Rage'' (– {{Years or months ago|1987}}: Music Videovideo show, on Australian TV since 1987)
* ''[[Rainbow (TV series)|Rainbow]]'' (– 20 years: British children's series on Thames TV, 1972–92).
* ''[[Reading Rainbow]]'' (16– 26 years: Sixteen seasons over 26twenty-six years, appears to have been [[Killed Off for Real]] in 2009, the third longest-running kids show on [[PBS]] behind ''[[Mister Rogers' Neighborhood]]'' and ''[[Sesame Street]]'').
* ''The Red Skelton Show'' – 20 years: (1951–71)
* ''Regional Contact'' (– {{Years or months ago|1988}}: CTV Ottawa local newsmagazine, Sunday evenings since 1988).
* ''[[Saint Seiya]]'' – {{Years or months ago|1986}}: (since 1986)
* ''[[Saltimbanco]]'', – {{Years or months ago|1992}}: a Cirque du Soleil show, hitshit the 20-year mark in Spring 2012. It originally closed in February 1997, but was brought back in October 1998; as a tent-based tour it ran until 2006, and relaunched as an arena tour in 2007 to visit cities that cannot support the tent tours.
* ''The Secret Storm'' (squeaks– 20 years: Squeaks in at 20 years and 7 days, 1954–74).
* ''[[Shadowrun]]'' (– {{Years or months ago|1989}}: Tabletop RPG with various spinoff video games; FASA's premier RPG survived the downfall of its parent company and just celebrated its 20th Anniversary).
* ''[[The Simpsons (animation)|The Simpsons]]'' (Currently– in{{Years itsor 23rdmonths season, and has been renewed for seasons 24 and 25.<ref>After budget issues with the FOX network threatened to have season 23 be its final season</ref>ago|1989|12}}: Has been on the air as a series since December 1989,<ref>with the first episode being the Christmas special, "Simpsons Roasting on an Open Fire." The first regular episode would be "Bart the Genius," though [[What Could Have Been|had it not been for the sloppy animation and behind-the-scenes issues Matt Groening was having with creating the show]], "Some Enchanted Evening" would have been the series premiere</ref> though the title characters originated in animated shorts on ''The Tracy Ullman Show'' back in 1987.)
* ''[[Slayers]]'' – {{Years or months ago|1989}}: Began in 1989 in a serialized magazine as a novel series; had an animeanimé run (1995–97); had two OVAs and five movies (1995-2001); anime was [[Uncancelled]] in 2008 and released two more seasons. The bulk of the long run was through the novels, which kept running through the new millennium and are still being made.
* ''[[Star Trek]]'' (– 22-24 years: Twenty-two years in all its TV incarnations, 1966–69; 1973–74; 1987-2005, plus 24+ on film {not counting the seven-year hiatus between ''[[Star Trek: Nemesis|Nemesis]]'' and ''[[Star Trek (film)|Star Trek 2009]]''})
* ''[[Taggart]]'' – 25 years: Originally a Scottish detective miniseries "Killer" (6-20+ years,Sept longest1983); a full series ran from 2 July 1985-7 November 2010 as the longest-running cop show on UK TV at the moment).
* ''[[Teenage Mutant Ninja Turtles]]'' (– {{Years or months ago|1984}}: [[Teenage Mutant Ninja Turtles Mirage|A comic book]] that started in 1984 has spawned two [[Teenage Mutant Ninja Turtles 1987|animated]] [[Teenage Mutant Ninja Turtles 2003|series]] (with a third in the works), [[Teenage Mutant Ninja Turtles (film)|a film series]], two other [[Teenage Mutant Ninja Turtles Adventures|comicbook]] [[Teenage Mutant Ninja Turtles IDW|universes]] and several video games).
* ''[[Thomas the Tank Engine]]'', a– {{Years or months ago|1984}}: A TV show based on an old series of books, has been going since 1984.
* ''Time Shock'' (Japanese quiz show, aired weekly 1969-1986, 1989-1990, and ''Time Shock 21'' in 2000-2002, plus periodic specials 2002–present)
* ''[[To Tell the Truth]]'' (1956–68, 1969–78, 1980–81, 1990–91, 2000–01; total of 24 seasons)
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