List of longest-running scripted American primetime television series

This is a list of the longest-running scripted prime time television series in the United States, as measured by number of seasons. Only shows that have aired on a major broadcast network for seven or more seasons and at least 100 episodes are included. Those that moved to syndication, a cable network, or a streaming service are noted below.

Series shaded in aqua are in production.

Number of seasons	Series	Network	First air date	Last air date	Number of episodes
36	The Simpsons	Fox	December 17, 1989[1]	present	790
26	Law & Order: Special Victims Unit	NBC	September 20, 1999	present	573
24	Law & Order	NBC	September 13, 1990	present	523[2]
23	Family Guy	Fox	April 11, 1999[3]	present	439[4]
22	NCIS	CBS	September 23, 2003	present	487
21	Grey's Anatomy	ABC	March 27, 2005	present	448
21	American Dad!	Fox (2005–2014) TBS (2014–2025) Fox (2025-present)[5]	May 1, 2005[6]	present	388
20	Gunsmoke	CBS	September 10, 1955	March 31, 1975	635
19	Lassie	CBS	September 12, 1954	March 21, 1971	591[7]
18	Criminal Minds[8]	CBS (2005–2020) Paramount+ (2022–present)	September 22, 2005	present	346
15	CSI: Crime Scene Investigation	CBS	October 6, 2000	February 15, 2015	337[9]
15	ER	NBC	September 19, 1994	April 2, 2009	331
15	Supernatural	The WB (2005–2006) The CW (2006–2020)	September 13, 2005	November 19, 2020	327
15	Bob's Burgers	Fox	January 9, 2011	present	287
15	The Jack Benny Program	CBS (1950–1964) NBC (1964–1965)	October 28, 1950[10]	April 16, 1965	261
14	The Adventures of Ozzie and Harriet	ABC	October 3, 1952	April 23, 1966	435
14	Bonanza	NBC	September 12, 1959	January 16, 1973	432
14	Dallas	CBS	April 2, 1978	May 3, 1991	357
14	Knots Landing	CBS	December 27, 1979	May 13, 1993	344
14	NCIS: Los Angeles	CBS	September 22, 2009	May 21, 2023	323
14	Blue Bloods	CBS	September 24, 2010	December 13, 2024	293
13	Chicago Fire	NBC	October 10, 2012	present	275
13	King of the Hill	Fox	January 12, 1997	May 6, 2010	259[11]
12	My Three Sons	ABC (1960–1965) CBS (1965–1972)	September 29, 1960	April 13, 1972	380 (184 in black-and-white, 196 in color)
12	Hawaii Five-O	CBS	September 26, 1968	April 26, 1980	282
12	The Big Bang Theory	CBS	September 24, 2007	May 16, 2019	279
12	Murder, She Wrote	CBS	September 30, 1984	May 19, 1996	264 (+ 4 TV movies)
12	Two and a Half Men	CBS	September 22, 2003	February 19, 2015	262
12	NYPD Blue	ABC	September 21, 1993	March 1, 2005	261
12	Bones	Fox	September 13, 2005	March 28, 2017	246
12	Chicago P.D.	NBC	January 8, 2014	present	242
11	The Danny Thomas Show[12]	ABC (1953–1957) CBS (1957–1964)	September 29, 1953	April 27, 1964	343
11	Cheers	NBC	September 30, 1982	May 20, 1993	275
11	Frasier	NBC	September 16, 1993	May 13, 2004	264
11	Murphy Brown	CBS	November 14, 1988	December 20, 2018	260[13]
11	Married... with Children	Fox	April 5, 1987	June 9, 1997	259
11	M*A*S*H	CBS	September 17, 1972	February 28, 1983	256
11	Happy Days	ABC	January 15, 1974	September 24, 1984	255
11	The Jeffersons	CBS	January 18, 1975	June 25, 1985	253
11	Modern Family	ABC	September 23, 2009	April 8, 2020	250
11	Will & Grace	NBC	September 21, 1998	April 23, 2020	246[14]
11	7th Heaven	The WB (1996–2006) The CW (2006–2007)	August 26, 1996	May 13, 2007	243
11	The X-Files	Fox	September 10, 1993	March 21, 2018	218[15]
10	Beverly Hills, 90210	Fox	October 4, 1990	May 17, 2000	293
10	Hawaii Five-0	CBS	September 20, 2010	April 3, 2020	240
10	Friends	NBC	September 22, 1994	May 6, 2004	236 (+ 1 special)
10	CSI: Miami	CBS	September 23, 2002	April 8, 2012	232
10	Roseanne	ABC	October 18, 1988	May 22, 2018	231[16]
10	The Goldbergs	ABC	September 24, 2013	May 3, 2023	229
10	JAG	NBC (1995–1996) CBS (1997–2005)	September 1, 1995	April 29, 2005	227[17]
10	Smallville	The WB (2001–2006) The CW (2006–2011)	October 16, 2001	May 13, 2011	218
10	The Blacklist	NBC	September 23, 2013	July 13, 2023	218
10	Chicago Med	NBC	November 17, 2015	present	197
9	The Beverly Hillbillies	CBS	September 26, 1962	March 23, 1971	274
9	Perry Mason	CBS	September 21, 1957	May 22, 1966	271
9	The Virginian[18]	NBC	September 19, 1962	March 24, 1971	249
9	The Love Boat	ABC	September 24, 1977[19]	May 24, 1986	250
9	The F.B.I.	ABC	September 19, 1965	April 28, 1974	241
9	The Drew Carey Show	ABC	September 13, 1995	September 8, 2004	233
9	Falcon Crest	CBS	December 4, 1981	May 17, 1990	227
9	The Waltons	CBS	September 14, 1972	June 4, 1981	221
9	Dynasty	ABC	January 13, 1981	May 11, 1989	220
9	Family Matters	ABC (1989–1997) CBS (1997–1998)	September 22, 1989	July 17, 1998	215
9	The Middle	ABC	September 30, 2009	May 22, 2018	215
9	Touched by an Angel	CBS	September 21, 1994	May 27, 2003	211
9	Everybody Loves Raymond	CBS	September 13, 1996	May 16, 2005	210
9	One Day at a Time	CBS	December 16, 1975	May 28, 1984	209
9	How I Met Your Mother	CBS	September 19, 2005	March 31, 2014	208
9	The King of Queens	CBS	September 21, 1998	May 14, 2007	207
9	All in the Family	CBS	January 12, 1971	April 8, 1979	205
9	24	Fox	November 6, 2001	July 14, 2014	204 + 24: Redemption[20]
9	Alice	CBS	August 31, 1976	March 19, 1985	202
9	The Facts of Life	NBC	August 24, 1979	May 7, 1988	201
9	The Office	NBC	March 24, 2005	May 16, 2013
9	Little House of the Prairie	NBC	September 11, 1974	March 21, 1983	200 (+5 specials)
9	Coach	ABC	February 28, 1989	May 14, 1997	200
9	CSI: NY	CBS	September 22, 2004	February 22, 2013	197
9	Last Man Standing	ABC (2011–2017) Fox (2018–2021)	October 11, 2011	May 20, 2021	194
9	Night Court	NBC	January 4, 1984	May 31, 1992	193
9	Matlock	NBC (1986–1992) ABC (1992–1995)	September 23, 1986	May 7, 1995	193 (+ pilot movie)
9	One Tree Hill	The WB (2003–2006) The CW (2006–2012)	September 23, 2003	April 4, 2012	187
9	The Flash	The CW	October 7, 2014	May 24, 2023	184
9	Scrubs	NBC (2001–2008) ABC (2009–2010)	October 2, 2001	March 17, 2010	182
9	Seinfeld	NBC	July 5, 1989	May 14, 1998	180
8	The George Burns and Gracie Allen Show	CBS	October 12, 1950	September 15, 1958	291
8	Wagon Train	NBC (1957–1962) ABC (1962–1965)	September 18, 1957	May 2, 1965	284
8	Dragnet	NBC	December 16, 1951	August 23, 1959	276
8	The Donna Reed Show	ABC	September 24, 1958	March 19, 1966	275
8	Bewitched	ABC	September 17, 1964	March 25, 1972	254 (74 episodes in black-and-white but later colorized; 180 episodes in color)
8	The Andy Griffith Show	CBS	October 3, 1960	April 1, 1968	249
8	Rawhide	CBS	January 9, 1959	December 7, 1965	217
8	Home Improvement	ABC	September 17, 1991	May 25, 1999	204
8	The Cosby Show	NBC	September 20, 1984	April 30, 1992	201 (and outtakes special)
8	Walker, Texas Ranger	CBS	April 21, 1993	May 19, 2001	200
8	That '70s Show	Fox	August 23, 1998	May 18, 2006	200
8	Ironside	NBC	September 14, 1967[21]	January 16, 1975	199[22]
8	Who's the Boss?	ABC	September 20, 1984	April 25, 1992	196
8	Mannix	CBS	September 16, 1967	April 13, 1975	194
8	Full House	ABC	September 22, 1987	May 23, 1995	192
8	Diff'rent Strokes	NBC (1978–1985) ABC (1985–1986)	November 3, 1978	May 7, 1986	189
8	Newhart	CBS	October 25, 1982	May 21, 1990	184
8	According to Jim	ABC	October 3, 2001	June 2, 2009	182
8	Desperate Housewives	ABC	October 3, 2004	May 13, 2012	180
8	Barnaby Jones	CBS	January 28, 1973	April 3, 1980	178
8	Laverne & Shirley	ABC	January 27, 1976	May 10, 1983	178
8	Diagnosis: Murder	CBS	October 29, 1993	May 11, 2001	178 (+ pilot and 5 TV movies)
8	Charmed	The WB	October 7, 1998	May 21, 2006	178
8	House	Fox	November 16, 2004	May 21, 2012	177
8	Mad About You	NBC (1992–1999) Spectrum (2019)	September 23, 1992	December 18, 2019	176
8	Black-ish	ABC	September 24, 2014	April 19, 2022	176
8	Castle	ABC	March 9, 2009	May 16, 2016	173
8	Three's Company	ABC	March 15, 1977	September 18, 1984	172
8	L.A. Law	NBC	October 3, 1986[23]	May 19, 1994	172
8	Wings	NBC	April 19, 1990	May 21, 1997	172
8	Girlfriends	UPN (2000–2006) The CW (2006–2008)	September 11, 2000	February 11, 2008	172
8	The Vampire Diaries	The CW	September 10, 2009	March 10, 2017	171
8	Arrow	The CW	October 6, 2012	January 28, 2020	170
8	Mom	CBS	September 23, 2013	May 13, 2021	170
8	Barney Miller	ABC	January 23, 1975	May 20, 1982	170
8	The Practice	ABC	March 4, 1997	May 16, 2004	168
8	S.W.A.T.	CBS	November 2, 2017	May 16, 2025	163
8	Magnum, P.I.	CBS	December 11, 1980	May 8, 1988	162
8	Simon & Simon	CBS	November 24, 1981	January 21, 1989	156
8	Brooklyn Nine-Nine	Fox (2013–2018) NBC (2019–2021)	September 17, 2013	September 16, 2021	153
8	Perfect Strangers	ABC	March 25, 1986	August 6, 1993	150
8	Quincy, M.E.	NBC	October 3, 1976	September 4, 1983	148
8	9-1-1	Fox (2018–2023) ABC (2024–present)	January 3, 2018	present	124
7	Melrose Place	Fox	July 8, 1992	May 24, 1999	226
7	Petticoat Junction	CBS	September 24, 1963	April 4, 1970	222
7	The Golden Girls	NBC	September 14, 1985	May 21, 1992	180
7	Star Trek: The Next Generation	CBS	September 28, 1987	May 23, 1994	178
7	Star Trek: Deep Space Nine	CBS	January 3, 1993	June 2, 1999	176
7	Family Ties	NBC	September 22, 1982	May 14, 1989	176 + one film
7	Adam-12	NBC	September 21, 1968	May 20, 1975	174
7	Star Trek: Voyager	UPN	January 16, 1995	May 23, 2001	172
7	Mission: Impossible	CBS	September 17, 1966	March 30, 1973	171
7	Medical Center	CBS	September 24, 1969[24]	September 6, 1976	170
7	Empty Nest	NBC	October 8, 1988	April 29, 1995	170
7	Marcus Welby, M.D.	ABC	September 23, 1969[25]	May 4, 1976	170
7	The Mary Tyler Moore Show	CBS	September 19, 1970	March 19, 1977	168
7	Growing Pains	ABC	September 24, 1985	April 25, 1992	166
7	Designing Women	CBS	September 29, 1986	May 24, 1993	163
7	Sabrina, the Teenage Witch	ABC (1996–2000) The WB (2000–2003)	September 27, 1996	April 24, 2003	163
7	Step by Step	ABC (1991–1997) CBS (1997–1998)	September 20, 1991	June 26, 1998	160
7	Without a Trace	CBS	September 26, 2002	May 19, 2009	160
7	Benson	ABC	September 13, 1979	April 19, 1986	158
7	Boy Meets World	ABC	September 24, 1993	May 5, 2000	158
7	Cold Case	CBS	September 28, 2003	May 2, 2010	156
7	The Good Wife	CBS	September 22, 2009	May 8, 2016	156
7	NCIS: New Orleans	CBS	September 23, 2014	May 23, 2021	155
7	Once Upon a Time	ABC	October 23, 2011	May 18, 2018	155
7	The West Wing	NBC	September 22, 1999	May 14, 2006	154[note 1]
7	Elementary	CBS	September 27, 2012	August 15, 2019	154
7	Gilmore Girls	The WB (2000–2006) The CW (2006–2007)	October 5, 2000	May 15, 2007	153
7	Hunter	NBC	September 18, 1984	April 26, 1991	153
7	Fantasy Island	ABC	January 28, 1978	May 19, 1984	152, plus 2 TV movies[26]
7	Trapper John, M.D.	CBS	September 23, 1979	September 4, 1986	151
7	Malcolm in the Middle	Fox	January 9, 2000	May 14, 2006	151
7	The Mentalist	CBS	September 23, 2008	February 28, 2015	151
7	In the Heat of the Night	NBC (1988-1992) CBS (1992-1994)	March 6, 1988	May 11, 1994	147 + 4 TV movies
7	The Dukes of Hazzard	CBS	January 26, 1979	February 8, 1985	147
7	Hill Street Blues	NBC	January 15, 1981	May 12, 1987	146
7	New Girl	Fox	September 20, 2011	May 15, 2018	146
7	Buffy the Vampire Slayer	The WB (1997–2001) UPN (2001–2003)	March 10, 1997	May 20, 2003	144
7	Young Sheldon	CBS	September 25, 2017	May 16, 2024	141
7	MacGyver	ABC	September 29, 1985	May 21, 1992	139 + 2 TV films
7	30 Rock	NBC	October 11, 2006	January 31, 2013	138
7	Riverdale	The CW	January 26, 2017	August 23, 2023	137
7	Agents of S.H.I.E.L.D.	ABC	September 24, 2013	August 12, 2020	136
7	The Neighborhood	CBS	October 1, 2018	present	135 (list of episodes)
7	FBI	CBS	September 25, 2018	present	134
7	Medium	NBC (2005–2009) CBS (2009–2011)	January 3, 2005	January 21, 2011	130
7	The Rookie	ABC	October 16, 2018	present	126
7	Parks and Recreation	NBC	April 9, 2009	February 24, 2015	126
7	The Good Doctor	ABC	September 25, 2017	May 21, 2024	126
7	Cagney & Lacey	CBS	March 25, 1982[27]	May 16, 1988	125 (+ pilot and 4 TV movies)
7	Scandal	ABC	April 5, 2012	April 19, 2018	124
7	Homicide: Life on the Street	NBC	January 31, 1993	May 21, 1999	122
7	All American	The CW	October 10, 2018	present	119
7	Legends of Tomorrow	The CW	January 21, 2016	March 2, 2022	110
7	Cheyenne	ABC	September 20, 1955[28]	December 17, 1962	108
7	The Conners	ABC	October 16, 2018	April 23, 2025	112
7	Station 19	ABC	March 22, 2018	May 30, 2024	105
7	Rules of Engagement	CBS	February 5, 2007	May 20, 2013	100
7	The 100	The CW	March 19, 2014	September 30, 2020	100

See also

• Lists of longest-running American shows by broadcast type:
  • List of longest-running American television series
  • List of longest-running American broadcast network television series
  • List of longest-running American cable television series
  • List of longest-running American first-run syndicated television series
  • List of longest-running American primetime television series

Notes

1. This includes the special episodes "Documentary Special" and "Isaac and Ishmael", but not the 2020 special "A West Wing Special to Benefit When We All Vote" (primarily a restaging of "Hartsfield's Landing").