Longest-running tv show in the world by episodes

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    • List of longest-running scripted American primetime television series!

    List of longest-running scripted American primetime television series

    Number of
    seasons Series Network First
    air date Last
    air date Number of
    episodes 36 The SimpsonsFoxDecember 17, 1989[1]present 781 26 Law & Order: Special Victims UnitNBCSeptember 20, 1999 present 562 24 Law & OrderNBC September 13, 1990 present 512[2]23 Family GuyFox April 11, 1999[3]present 426[4]22 NCISCBS September 23, 2003 present 478 21 Grey's AnatomyABCMarch 27, 2005 present 438 21 American Dad!Fox (2005–2014)
    TBS(2014–present)[5]May 1, 2005[6]present 381 20 GunsmokeCBSSeptember 10, 1955 March 31, 1975 635 19 LassieCBS September 12, 1954 March 21, 1971 591[7]17 Criminal Minds[8]CBS (2005–2020)
    Paramount+(2022–present)September 22, 2005 present 344 15 CSI: Crime Scene InvestigationCBS October 6, 2000 February 15, 2015 337

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