Number of
seasons | Series | Network | First air date | Last air date | Number of episodes
|
|---|
| 30 | The Simpsons | FOX | 1989-12-17 | Present | The Simpsons|Infobox television | } |
| 20 | Gunsmoke | CBS | 1955-09-10 | 1975-03-31 | 635 |
| 20 | Law & Order | NBC | 1990-09-13 | 2010-05-24 | Law & Order|Infobox television | } |
| 20 | Special Victims Unit | NBC | 1999-09-20 | Present | Law & Order: Special Victims Unit|Infobox television | } |
| 19 | Lassie | CBS | 1954-09-12 | 1971-03-21 | Lassie (1954 TV series)|Infobox television | }[1] |
| 17 | Family Guy | FOX | 1999-01-31 | Present | Family Guy|Infobox television | }[2] |
| 16 | NCIS | CBS | 2003-09-23 | Present | NCIS (TV series)|Infobox television | } |
| 15 | Grey's Anatomy | ABC | 2005-03-27 | Present | Grey's Anatomy|Infobox television | } |
| 15 | Crime Scene Investigation | CBS | 2000-10-06 | 2015-02-15 | CSI: Crime Scene Investigation|Infobox television | }[3] |
| 15 | ER | NBC | 1994-09-19 | 2009-04-02 | ER (TV series)|Infobox television | } |
| 15 | The Jack Benny Program | CBS (1950–1964)
NBC (1964–1965) | 1950-10-28[4] | 1965-04-16 | The Jack Benny Program|Infobox television | } |
| 15 | American Dad! | FOX (2005–2014)
TBS (2014–)[5] | 2005-02-06 | Present | American Dad!|Infobox television | } |
| 14 | The Adventures of Ozzie and Harriet | ABC | 1952-10-03 | 1966-04-23 | The Adventures of Ozzie and Harriet|Infobox television | } |
| 14 | Bonanza | NBC | 1959-09-12 | 1973-01-16 | Bonanza|Infobox television | } |
| 14 | Armstrong Circle Theatre | NBC (1950–1957)
CBS (1957–1963) | 1950-06-06 | 1963-06-05 | Armstrong Circle Theatre|Infobox television | } |
| 14 | Dallas | CBS | 1978-04-02 | 1991-05-03 | Dallas (1978 TV series)|Infobox television | } |
| 14 | Knots Landing | CBS | 1979-12-27 | 1993-05-13 | Knots Landing|Infobox television | } |
| 14 | Criminal Minds | CBS | 2005-09-22 | Present | Criminal Minds|Infobox television | } |
| 14 | Supernatural | WB (2005–2006)
CW (2006–) | 2005-09-13 | Present | Supernatural (U.S. TV series)|Infobox television | } |
| 13 | King of the Hill | FOX | 1997-01-12 | 2009-09-13 | King of the Hill|Infobox television | }[6] |
| 12 | My Three Sons | ABC (1960–1965)
CBS (1965–1972) | 1960-09-29 | 1972-04-13 | My Three Sons|Infobox television | } |
| 12 | The Big Bang Theory | CBS | 2007-09-24 | Present | The Big Bang Theory|Infobox television | } |
| 12 | Hawaii Five-O | CBS | 1968-09-26 | 1980-04-26 | Hawaii Five-O (1968 TV series)|Infobox television | } |
| 12 | Murder, She Wrote | CBS | 1984-09-30 | 1996-05-19 | Murder, She Wrote|Infobox television | } |
| 12 | Two and a Half Men | CBS | 2003-09-22 | 2015-02-19 | Two and a Half Men|Infobox television | } |
| 12 | NYPD Blue | ABC | 1993-09-21 | 2005-03-01 | NYPD Blue|Infobox television | } |
| 12 | Bones | FOX | 2005-09-13 | 2017-03-28 | Bones (TV series)|Infobox television | } |
| 11 | Kraft Television Theatre | NBC | 1947-05-07 | 1958-10-01 | Kraft Television Theatre|Infobox television | } |
| 11 | The Danny Thomas Show[7] | ABC (1953–1957)
CBS (1957–1964) | 1953-09-29 | 1964-04-27 | 344 |
| 11 | Cheers | NBC | 1982-09-30 | 1993-05-20 | 275 |
| 11 | Frasier | NBC | 1993-09-16 | 2004-05-13 | Frasier|Infobox television | } |
| 11 | Married... with Children | FOX | 1987-04-05 | 1997-06-09 | Married... with Children|Infobox television | }[8] |
| 11 | M*A*S*H | CBS | 1972-09-17 | 1983-02-28 | M*A*S*H (TV series)|Infobox television | } |
| 11 | Happy Days | ABC | 1974-01-15 | 1984-09-24 | Happy Days|Infobox television | } |
| 11 | Murphy Brown | CBS | 1988-11-14 | Present | Murphy Brown|Infobox television | } |
| 11 | The Jeffersons | CBS | 1975-01-18 | 1985-06-25 | The Jeffersons|Infobox television | } |
| 11 | 7th Heaven | WB (1996–2006)
CW (2006–2007) | 1996-08-26 | 2007-05-13 | 7th Heaven (TV series)|Infobox television | } |
| 11 | The X-Files | FOX | 1993-09-10 | 2018-03-21 | The X-Files|Infobox television | }[9] |
| 10 | General Electric Theater | NBC | 1953-02-01 | 1962-06-03 | General Electric Theater|Infobox television | } |
| 10 | Beverly Hills, 90210 | FOX | 1990-10-04 | 2000-05-17 | Beverly Hills, 90210|Infobox television | } |
| 10 | The United States Steel Hour | ABC (1953–1955)
CBS (1955–1963) | 1953-10-27 | 1963-06-12 | 253 |
| 10 | Friends | NBC | 1994-09-22 | 2004-05-06 | Friends|Infobox television | } |
| 10 | Miami | CBS | 2002-09-23 | 2012-04-08 | CSI: Miami|Infobox television | } |
| 10 | Roseanne | ABC | 1988-10-18 | 2018-05-22 | Roseanne|Infobox television | }[10] |
| 10 | JAG | NBC (1995–1996)
CBS (1997–2005) | 1995-09-01 | 2005-04-29 | JAG (TV series)|Infobox television | }[11] |
| 10 | Smallville | WB (2001–2006)
CW (2006–2011) | 2001-10-16 | 2011-05-13 | 218 |
| 09 | The Beverly Hillbillies | CBS | 1962-09-26 | 1971-03-23 | The Beverly Hillbillies|Infobox television | } |
| 09 | Perry Mason | CBS | 1957-09-21 | 1966-05-22 | Perry Mason (TV series)|Infobox television | } |
| 09 | The Virginian[12] | NBC | 1962-09-19 | 1971-03-24 | The Virginian (TV series)|Infobox television | } |
| 09 | The Love Boat | ABC | 1977-09-24[13] | 1986-05-24 | The Love Boat|Infobox television | } |
| 09 | The F.B.I. | ABC | 1965-09-19 | 1974-04-28 | The F.B.I. (TV series)|Infobox television | } |
| 09 | The Drew Carey Show | ABC | 1995-09-13 | 2004-09-08 | The Drew Carey Show|Infobox television | } |
| 09 | Falcon Crest | CBS | 1981-12-04 | 1990-05-17 | Falcon Crest|Infobox television | } |
| 09 | Night Court | NBC | 1984-01-04 | 1992-05-31 | Night Court|Infobox television | } |
| 09 | Dynasty | ABC | 1981-01-12 | 1989-05-11 | 220 |
| 09 | Family Matters | ABC (1989–1997)
CBS (1997–1998) | 1989-09-22 | 1998-07-17 | Family Matters|infobox television | } |
| 10 | Los Angeles | CBS | 2009-09-22 | Present | NCIS: Los Angeles|Infobox television | } |
| 09 | All in the Family | CBS | 1971-01-12 | 1979-04-08 | All in the Family|Infobox television | } |
| 09 | The Middle | ABC | 2009-09-30 | 2018-05-22 | The Middle (TV series)|Infobox television | } |
| 09 | Touched by an Angel | CBS | 1994-09-21 | 2003-04-27 | Touched by an Angel|Infobox television | } |
| 09 | The Waltons | CBS | 1972-09-14 | 1981-06-04 | The Waltons|Infobox television | } |
| 09 | Everybody Loves Raymond | CBS | 1996-09-13 | 2005-05-16 | Everybody Loves Raymond|Infobox television | } |
| 10 | Modern Family | ABC | 2009-09-23 | Present | Modern Family|Infobox television | } |
| 10[14] | Will & Grace | NBC | 1998-09-21 | Present | Will & Grace|Infobox television | }[14] |
| 09 | One Day at a Time | CBS | 1975-12-16 | 1984-05-28 | One Day at a Time|Infobox television | } |
| 09 | The Facts of Life | NBC | 1979-08-24 | 1988-05-07 | The Facts of Life (TV series)|Infobox television | } |
| 09 | How I Met Your Mother | CBS | 2005-09-19 | 2014-03-31 | How I Met Your Mother|Infobox television | } |
| 09 | The King of Queens | CBS | 1998-09-21 | 2007-05-14 | The King of Queens|Infobox television | } |
| 09 | Little House on the Prairie[15] | NBC | 1974-09-11 | 1983-03-21 | Little House on the Prairie (TV series)|Infobox television | } |
| 09 | Alice | CBS | 1976-08-31 | 1985-03-19 | Alice (TV series)|Infobox television | } |
| 09 | The Office | NBC | 2005-03-24 | 2013-05-16 | The Office (U.S. TV series)|Infobox television | } |
| 09 | Coach | ABC | 1989-02-28 | 1997-05-14 | Coach (TV series)|Infobox television | } |
| 09 | NY | CBS | 2004-09-22 | 2013-02-22 | CSI: NY|Infobox television | } |
| 09 | Matlock | NBC (1986–1992)
ABC (1992–1995) | 1986-09-23 | 1995-05-07 | Matlock (TV series)|Infobox television | } |
| 09 | One Tree Hill | WB (2003–2006)
CW (2006–2012) | 2003-09-23 | 2012-04-04 | One Tree Hill (TV series)|Infobox television | } |
| 09 | Scrubs | NBC (2001–2008)
ABC (2009–2010) | 2001-10-02 | 2010-03-17 | Scrubs (TV series)|Infobox television | } |
| 09 | Seinfeld | NBC | 1989-07-05 | 1998-05-14 | Seinfeld|Infobox television | } |
| 08 | Schlitz Playhouse of Stars | CBS | 1951-10-05 | 1959-03-27 | Schlitz Playhouse of Stars|Infobox television | } |
| 08[16] | The Big Story | NBC | 1949-09-16 | 1957-06-28 | The Big Story (radio and TV series)|Infobox television | }[16] |
| 08 | The George Burns and Gracie Allen Show | CBS | 1950-10-12 | 1958-09-15 | The George Burns and Gracie Allen Show|Infobox television | } |
| 08 | Wagon Train | NBC (1957–1962)
ABC (1962–1965) | 1957-09-18 | 1965-05-02 | Wagon Train|Infobox television | } |
| 08 | Robert Montgomery Presents | NBC | 1950-01-30 | 1957-06-24 | Robert Montgomery Presents|Infobox television | } |
| 08 | Dragnet | NBC | 1951-12-16 | 1959-08-23 | Dragnet (1951 TV series)|Infobox television | } |
| 08 | The Donna Reed Show | ABC | 1958-09-24 | 1966-03-19 | The Donna Reed Show|Infobox television | } |
| 08[17] | Mama | CBS | 1949-07-01 | 1956-07-27 | 261[17] |
| 08 | Bewitched | ABC | 1964-09-17 | 1972-03-25 | Bewitched|Infobox television | } |
| 08 | The Andy Griffith Show | CBS | 1960-10-03 | 1968-04-01 | The Andy Griffith Show|Infobox television | } |
| 08 | Ford Theatre | CBS (1948–1951)
NBC (1952–1956)
ABC (1956–1957) | 1948-10-17 | 1957-06-26 | Ford Theatre|Infobox television | } |
| 08 | Home Improvement | ABC | 1991-09-17 | 1999-05-25 | Home Improvement (TV series)|Infobox television | } |
| 08 | Diff'rent Strokes | NBC (1978–1985)
ABC (1985–1986) | 1978-11-03 | 1986-05-07 | Diff'rent Strokes|Infobox television | } |
| 08 | Simon & Simon | CBS | 1981-11-24 | 1989-01-21 | Simon & Simon|Infobox television | } |
| 08 | Rawhide | CBS | 1959-01-09 | 1965-12-07 | Rawhide (TV series)|Infobox television | } |
| 08 | Laverne & Shirley | ABC | 1976-01-27 | 1983-05-10 | Laverne & Shirley|Infobox television | } |
| 08 | Walker, Texas Ranger | CBS | 1993-04-21 | 2001-05-19 | 198 |
|
| 08 | The Cosby Show | NBC | 1984-09-20 | 1992-04-30 | The Cosby Show|Infobox television | } |
| 08 | That '70s Show | FOX | 1998-08-23 | 2006-05-18 | That '70s Show|Infobox television | } |
| 08 | Who's the Boss? | ABC | 1984-09-20 | 1992-04-25 | Who's the Boss?|Infobox television | } |
| 08 | Ironside | NBC | 1967-09-14[18] | 1975-01-16 | Ironside (1967 TV series)|Infobox television | }[19] |
| 08 | Mannix | CBS | 1967-09-16 | 1975-04-13 | Mannix|Infobox television | } |
| 09 | Hawaii Five-0 | CBS | 2010-09-20 | Present | Hawaii Five-0 (2010 TV series)|Infobox television | } |
| 08 | Full House | ABC | 1987-09-22 | 1995-05-23 | Full House|Infobox television | } |
| 09 | 24 | FOX | 2001-11-06 | 2014-07-14 | 24 (TV series)|Infobox television | }[20] |
| 08 | According to Jim | ABC | 2001-10-03 | 2009-06-02 | According to Jim|Infobox television | } |
| 08 | Desperate Housewives | ABC | 2004-10-03 | 2012-05-13 | Desperate Housewives|Infobox television | } |
| 08 | Barnaby Jones | CBS | 1973-01-28 | 1980-04-03 | Barnaby Jones|Infobox television | } |
| 08 | Murder | CBS | 1993-10-29 | 2001-05-11 | Diagnosis: Murder|Infobox television | } |
| 08 | The Practice | ABC | 1997-03-04 | 2004-05-16 | The Practice|Infobox television | } |
| 08 | Charmed | WB | 1998-10-07 | 2006-05-21 | Charmed|Infobox television | } |
| 08 | House M.D. | FOX | 2004-11-16 | 2012-05-21 | House (TV series)|Infobox television | } |
| 09 | Blue Bloods | CBS | 2010-09-24 | Present | Blue Bloods (TV series)|Infobox television | } |
| 08 | Castle | ABC | 2009-03-09 | 2016-05-16 | Castle (TV series)|Infobox television | } |
| 08 | Three's Company | ABC | 1977-03-15 | 1984-09-18 | Three's Company|Infobox television | } |
| 08 | Wings | NBC | 1990-04-19 | 1997-05-21 | Wings (1990 TV series)|Infobox television | } |
| 08 | Girlfriends | UPN (2000–2006)
CW (2006–2008) | 2000-09-11 | 2008-02-11 | Girlfriends (2000 TV series)|Infobox television | } |
| 08 | L.A. Law | NBC | 1986-10-03[21] | 1994-05-19 | L.A. Law|Infobox television | } |
| 08 | The Vampire Diaries | CW | 2009-09-10 | 2017-03-10 | The Vampire Diaries|Infobox television | } |
| 08 | Barney Miller | ABC | 1975-01-23 | 1982-05-20 | Barney Miller|Infobox television | } |
| 08 | The Loretta Young Show | NBC | 1953-09-02 | 1961-06-04 | The Loretta Young Show|Infobox television | } |
| 08 | Magnum, P.I. | CBS | 1980-12-11 | 1988-05-08 | Magnum, P.I.|Infobox television | } |
| 08 | Perfect Strangers | ABC | 1986-03-25 | 1993-08-06 | Perfect Strangers (TV series)|infobox television | } |
| 09 | Bob's Burgers | FOX | 2011-01-09 | Present | Bob's Burgers|Infobox television | } |
| 08 | Quincy, M.E. | NBC | 1976-10-03 | 1983-09-04 | Quincy, M.E.|Infobox television | } |
| 08 | Newhart | CBS | 1982-10-25 | 1990-05-21 | Newhart|Infobox television | } |
| 07 | Lux Video Theatre | CBS (1950–1954)
NBC (1954–1957) | 1950-10-02 | 1957-09-12 | Lux Video Theatre|Infobox television | } |
| 07 | Fireside Theatre | NBC | 1949-04-05 | 1958-05-22 | Fireside Theatre|Infobox television | } |
| 07[22] | Alfred Hitchcock Presents | CBS (1955–1960)
NBC (1960–1962) | 1955-10-02 | 1962-06-26 | 268[22] |
| 07 | The Philco Television Playhouse | NBC | 1948-10-03 | 1955-10-02 | The Philco Television Playhouse|Infobox television | } |
| 07 | Melrose Place | FOX | 1992-07-08 | 1999-05-24 | Melrose Place|Infobox television | } |
| 07 | Petticoat Junction | CBS | 1963-09-24 | 1970-04-04 | 222 |
| 07 | Step by Step | ABC (1991–1997)
CBS (1997–1998) | 1991-09-20 | 1998-06-26 | Step by Step (TV series)|Infobox television | } |
| 07 | The Golden Girls | NBC | 1985-09-14 | 1992-05-21 | The Golden Girls|Infobox television | } |
| 07 | Family Ties | NBC | 1982-09-22 | 1989-05-14 | Family Ties|Infobox television | } |
| 07 | Adam-12 | NBC | 1968-09-21 | 1975-05-20 | 174 |
| 07 | Voyager | UPN | 1995-01-16 | 2001-05-23 | Star Trek: Voyager|Infobox television | } |
| 07 | Impossible | CBS | 1966-09-17 | 1973-03-30 | Mission: Impossible|Infobox television | } |
| 07 | Medical Center | CBS | 1969-09-24[23] | 1976-09-06 | Medical Center (TV series)|Infobox television | } |
| 07 | Empty Nest | NBC | 1988-10-08 | 1995-04-29 | Empty Nest|Infobox television | } |
| 07 | Marcus Welby, M.D. | ABC | 1969-09-23[24] | 1976-05-04 | Marcus Welby, M.D.|Infobox television | } |
| 07 | The Mary Tyler Moore Show | CBS | 1970-09-19 | 1977-03-19 | The Mary Tyler Moore Show|Infobox television | } |
| 07 | Growing Pains | ABC | 1985-09-24 | 1992-04-25 | Growing Pains|Infobox television | } |
| 07 | Mad About You | NBC | 1992-09-23 | 1999-05-24 | Mad About You|Infobox television | } |
| 07 | Designing Women | CBS | 1986-09-29 | 1993-05-24 | Designing Women|Infobox television | } |
| 07 | Sabrina, the Teenage Witch | ABC (1996–2000)
WB (2000–2003) | 1996-09-27 | 2003-04-24 | 163 |
| 07 | Without a Trace | CBS | 2002-09-26 | 2009-05-19 | Without a Trace|Infobox television | } |
| 07 | Pretty Little Liars | ABC | 2010-06-08 | 2017-06-07 | Pretty Little Liars|Infobox television | } |
| 07 | Benson | ABC | 1979-09-13 | 1986-04-19 | Benson (TV series)|Infobox television | } |
| 07 | Boy Meets World | ABC | 1993-09-24 | 2000-05-05 | Boy Meets World|Infobox television | } |
| 07 | The West Wing | NBC | 1999-09-22 | 2006-05-14 | The West Wing|Infobox television | } |
| 07 | Cold Case | CBS | 2003-09-28 | 2010-05-02 | Cold Case|Infobox television | } |
| 07 | The Good Wife | CBS | 2009-09-22 | 2016-05-08 | The Good Wife|Infobox television | } |
| 07 | Once Upon a Time | ABC | 2011-10-23 | 2018-05-18 | Once Upon a Time (TV series)|Infobox television | } |
| 07 | Hunter | NBC | 1984-09-18 | 1991-04-26 | Hunter (1984 U.S. TV series)|Infobox television | } |
| 07 | Gilmore Girls | WB (2000–2006)
CW (2006–2007) | 2000-10-05 | 2007-05-15 | Gilmore Girls|Infobox television | } |
| 07 | Fantasy Island | ABC | 1978-01-28 | 1984-05-19 | Fantasy Island|Infobox television | }[25] |
| 07 | Trapper John, M.D. | CBS | 1979-09-23 | 1986-09-04 | Trapper John, M.D.|Infobox television | } |
| 07 | Malcolm in the Middle | FOX | 2000-01-09 | 2006-05-14 | Malcolm in the Middle|Infobox television | } |
| 07 | The Mentalist | CBS | 2008-09-23 | 2015-02-18 | The Mentalist|Infobox television | } |
| 07 | Chicago Fire | NBC | 2012-10-10 | Present | Chicago Fire (TV series)|Infobox television | } |
| 07 | Just Shoot Me! | NBC | 1997-03-04 | 2003-08-16 | Just Shoot Me!|Infobox television | } |
| 07 | The Dukes of Hazzard | CBS | 1979-01-26 | 1985-02-08 | The Dukes of Hazzard|Infobox television | } |
| 07 | Hill Street Blues | NBC | 1981-01-15 | 1987-05-12 | Hill Street Blues|Infobox television | } |
| 07 | New Girl | FOX | 2011-09-20 | 2018-05-15 | New Girl|Infobox television | } |
| 07 | Buffy the Vampire Slayer | WB (1997–2001)
UPN (2001–2003) | 1997-03-10 | 2003-05-20 | Buffy the Vampire Slayer|Infobox television | } |
| 07 | Arrow | CW | 2012-10-06 | Present | Arrow (TV series)|Infobox television | } |
| 07 | In the Heat of the Night | NBC (1988–1992)
CBS (1992–1994) | 1988-03-06 | 1994-05-11 | In the Heat of the Night (TV series)|Infobox television | } |
| 07 | Last Man Standing | ABC (2011-2017)
FOX (2018-) | 2011-10-11 | Present | Last Man Standing (U.S. TV series)|Infobox television | } |
| 07 | Futurama | Fox/Comedy Central | 1999-03-28 | 2013-09-03 | Futurama|Infobox television | } |
| 07 | MacGyver | ABC | 1985-09-29 | 1992-05-21 | MacGyver (1985 TV series)|Infobox television | } |
| 07 | 30 Rock | NBC | 2006-10-11 | 2013-01-31 | 30 Rock|Infobox television | } |
| 07 | Medium | NBC (2005–2009)
CBS (2009–2011) | 2005-01-03 | 2011-01-21 | Medium (TV series)|Infobox television | } |
| 07 | Emergency! | NBC | 1972 | 1979 | Emergency!|Infobox television | } |
| 07 | Parks and Recreation | NBC | 2009-04-09 | 2015-02-24 | Parks and Recreation|Infobox television | } |
| 07 | Cagney & Lacey | CBS | 1982-03-25[26] | 1988-05-16 | Cagney & Lacey|Infobox television | } |
| 07 | Scandal | ABC | 2012-04-05 | 2018-04-19 | Scandal (TV series)|Infobox television | } |
| 07 | Life on the Street | NBC | 1993-01-31 | 1999-05-21 | Homicide: Life on the Street|Infobox television | } |
| 07 | Cheyenne | ABC | 1955-09-20[27] | 1962-12-17 | Cheyenne (TV series)|Infobox television | } |
| 07 | Rules of Engagement | CBS | 2007-02-05 | 2013-05-20 | Rules of Engagement (TV series)|Infobox television | } |
|
1. ^Lassie ran for a total of 19 seasons and 591 episodes. The final two seasons aired in syndication.
2. ^Family Guy has two episodes that did not originally air on FOX. "When You Wish Upon a Weinstein" originally aired on Adult Swim and "Partial Terms of Endearment" originally aired in the UK.
3. ^CSI: Crime Scene Investigation officially ended its run with Immortality on September 27, 2015. The TV movie is considered the two-episode 16th season, bringing the episode total to 337.
4. ^The Jack Benny Program began with a pilot episode on May 8, 1949.
5. ^American Dad! moved to TBS in 2014 for additional seasons.
6. ^Four more episodes of King of the Hill aired after its official final broadcast, bringing the total to 259.
7. ^For its first three seasons, The Danny Thomas Show aired as Make Room for Daddy.
8. ^Episode I'll See You in Court did not originally air on FOX.
9. ^In 2016, The X-Files returned to television after 14 years for two more seasons.
10. ^Show later continued as The Conners for a further ten episodes.
11. ^The episode "Skeleton Crew" did not originally air on NBC.
12. ^In its final season, the title of The Virginian was changed to The Men from Shiloh.
13. ^The Love Boat had two pilot movies that aired on September 18, 1976 and January 21, 1977.
14. ^1 http://deadline.com/2017/01/will-grace-return-nbc-season-9-1201888523/
15. ^In its final season, the title of Little House on the Prairie was changed to Little House: A New Beginning.
16. ^1 An additional season of The Big Story aired in syndication, bringing the series up to nine and the episode total to 349.
17. ^1 An additional season of Mama aired on Sunday afternoons, bringing the episode total to 283.
18. ^Ironside began with the pilot movie A Man Called Ironside on March 28, 1967.
19. ^Ironside had three additional episodes after its official final broadcast.
20. ^In 2014, 24 returned to television with another 12-episode series Live Another Day.
21. ^L.A. Law began with a two-hour pilot on September 15, 1986.
22. ^1 Alfred Hitchcock Presents was expanded to an hour in 1962 and ran for three additional seasons as The Alfred Hitchcock Hour. It also had an episode that never aired—"The Sorcerer's Apprentice".
23. ^Medical Center began with the pilot movie U.M.C. on April 17, 1969.
24. ^Marcus Welby, M.D. began with a pilot movie on March 26, 1969.
25. ^Fantasy Island had two premiere movies that aired on January 14, 1977 and January 20, 1978.
26. ^Cagney & Lacey began with a pilot movie on October 8, 1981.
27. ^Cheyenne began as a rotating element of Warner Bros. Presents.