| K.C. Undercover | Disney Channel | 2015–2018 | 3 | 75 | Teen sitcom |
| K.Michelle: My Life | VH1 | 2014–2017 | 2 | 16 | Reality |
| K Street | HBO | 2003 | 1 | 10 | Drama |
| K-Ville | Fox | 2007 | 1 | 11 | Drama |
| KaBlam!Animated series | Nickelodeon | 1996–2000 | 4 | 47 | Comedy |
| The Kacey Musgraves Christmas Show | Prime Video | 2019–on air | — | — | — |
| The Kaiser Aluminum Hour | NBC | 1956–1957 | 1 | 23 | Anthology |
| KaleidoscopeMiniseries | Netflix | 2023 | — | 8 | Crime thriller |
| The Kallikaks | NBC | 1977 | 1 | 5 | Sitcom |
| Kama Sutra | Showtime | 2000 | — | 15 | Drama |
| Kamen Rider: Dragon Knight | The CW | 2009 | 1 | 40 | Tokusatsu |
| Kamp Koral: SpongeBob's Under YearsAnimated series | Nickelodeon | 2021–2024 | 2 | 26 | Fantasy |
| Kampung Boy | | 1999–2000 | 2 | 26 | — |
| Kandi & the Gang | Bravo | 2022 | — | — | Reality |
| The Kandi Factory | Bravo | 2013 | 1 | 8 | Reality |
| Kandi's Wedding | Bravo | 2014 | 1 | 5 | Reality |
| Kappa Mikey | Nicktoons | 2006–2008 | 2 | 52 | Anime-influenced animation |
| Kaput & ZöskyAnimated series | Nicktoons | 2002–2003 | 2 | 26 | — |
| The Karate KidAnimated series | NBC | 1989 | 1 | 13 | Adventure |
| Karate kid leyends | Disney Channel | 2023–on air | — | 8 | Physical comedy |
| Karate KommandosAnimated series | Boomerang | 1986 | 1 | 5 | Action |
| The Kardashians | Hulu, Disney+ | 2022–on air | 7 | 71 | Reality |
| Karen | NBC | 1964 | 1 | 27 | Sitcom |
| Karen | ABC | 1975 | 1 | 13 | Sitcom |
| Karen's Song | Fox | 1987 | 1 | 13 | Sitcom |
| Karen Sisco | ABC | 2003 | 1 | 10 | Drama |
| Karma | Cinemax, HBO Max | 2020–on air | 1 | 8 | — |
| Karma's WorldAnimated series | Netflix | 2021–on air | — | — | Comedy |
| Kate & Allie | CBS | 1984–1989 | 6 | 122 | Sitcom |
| Kate Brasher | CBS | 2001 | 1 | 6 | — |
| Kate McShane | CBS | 1975 | 1 | 11 | — |
| Kate Plus 8 | Discovery Home & Health | 2007–2017 | 11 | 173 | Reality |
| Kath & Kim | NBC | 2008–2009 | 1 | 17 | Sitcom |
| Kathy | Bravo | 2012–2013 | 2 | 24 | — |
| Kathy Griffin: My Life on the D-List | Bravo | 2005–2010 | 6 | 48 | Comedy |
| Kathy's So Called Reality | MTV | 2001 | 1 | 6 | Reality |
| Katiba Ketubah | The CW | 2009–2014 | 5 | 120 | Reality |
| Katie | Syndication | 2012–2014 | 2 | 327 | — |
| Katie & Peter | E!, ITV2 | 2004–2009 | 9 | 74 | Reality |
| Katy Keene | The CW | 2020 | 1 | 13 | LGBTQ |
| Kaz | CBS | 1978–1979 | 1 | 22 | Drama |
| Keen Eddie | Fox | 2003 | 1 | 13 | Police procedural |
| Keep BreathingMiniseries | Netflix | 2022 | 1 | 6 | Survival |
| Keep It Spotless | Nickelodeon | 2018 | 1 | 20 | — |
| Keep on Truckin' | ABC | 1975 | 1 | 4 | — |
| Keep This Between Us | Freeform | 2022 | — | 4 | Documentary |
| The Keepers | Netflix | 2017 | 1 | 7 | — |
| Keeping Up with the Kardashians | E! | 2007–2021 | 20 | 280 | Reality |
| Kell on Earth | Bravo | 2010 | 1 | 8 | Documentary |
| The Kelly File | Fox News | 2013–2017 | — | — | Current affairs |
| Kelly Kelly | The WB | 1998 | 1 | 7 | Sitcom |
| Kenan | NBC | 2021–2022 | 2 | 20 | Comedy |
| Kenan & Kel | Nickelodeon | 1996–2001 | 4 | 65 | Sitcom |
| Kendra | E! | 2009–2011 | 4 | 45 | Reality |
| Kendra on Top | We TV | 2012–2017 | 5 | 68 | Reality |
| KennedyMiniseries | NBC | 1983 | — | 3 | — |
| The KennedysMiniseries | History | 2011 | 1 | 8 | Historical |
| The Kennedys: After CamelotMiniseries | Reelz | 2017 | 1 | 2 | Drama |
| Kenny the Shark | NBC, Discovery Kids on NBC | 2003–2005 | 2 | 26 | — |
| Kentucky Jones | NBC | 1964–1965 | 1 | 26 | Sitcom |
| Kept | VH1 | 2005 | 1 | 10 | Reality |
| Kesha: My Crazy Beautiful Life | MTV | 2013 | 2 | 14 | Reality |
| Kevin | Prime Video | 2026 | — | — | Adult animation |
| Kevin Can F**k Himself | AMC | 2021–2022 | 2 | 16 | Black comedy |
| Kevin Can Wait | CBS | 2016–2018 | 2 | 48 | Sitcom |
| Kevin from Work | Freeform | 2015 | 1 | 10 | Sitcom |
| Kevin Hill | UPN | 2004–2005 | 1 | 22 | Drama |
| Kevin (Probably) Saves the World | ABC | 2017–2018 | 1 | 16 | Comedy-drama |
| Key & Peele | Comedy Central | 2012–2015 | 5 | 53 | German television comedy |
| Key West | Fox | 1993 | 1 | 13 | Comedy-drama |
| Keyshia & Daniel: Family First | BET | 2012 | 1 | 8 | Reality |
| Keyshia Cole: All In | BET | 2015 | 1 | 8 | — |
| Keyshia Cole: The Way It Is | BET | 2006–2008 | 3 | 33 | Reality |
| Khan! | CBS | 1975 | 1 | 7 | Detective |
| Khloé & Lamar | E! | 2011–2012 | 2 | 20 | Reality |
| Kibaoh Klashers | Netflix | 2017 | 2 | 30 | Adventure |
| Kick Buttowski: Suburban DaredevilAnimated series | Disney XD | 2010–2012 | 2 | 52 | Comedy |
| Kickin' It | Disney XD | 2011–2015 | 4 | 84 | Children's |
| Kicking & Screaming | Fox | 2017 | 1 | 8 | Reality |
| The Kicks | Prime Video | 2015–2016 | 1 | 10 | Sitcom |
| Kid CosmicAnimated series | Netflix | 2021–2022 | 3 | 24 | Superhero |
| Kid 'n PlayAnimated series | NBC | 1990 | 1 | 13 | — |
| Kid Nation | CBS | 2007 | 1 | 13 | Reality |
| Kid NotoriousAnimated series | Comedy Central | 2003 | 2 | 9 | Adult animation |
| The Kid Super Power Hour with Shazam!Animated series | NBC | 1981–1982 | — | — | Fantasy |
| Kidd Video | NBC | 1984–1985 | 1 | 26 | Comedy |
| Kidding | Showtime | 2018–2020 | 2 | 20 | Comedy-drama |
| Kidnapped | NBC | 2006–2007 | 1 | 13 | Drama |
| The Kids Are Alright | ABC | 2018–2019 | 1 | 23 | Comedy |
| Kids Baking Championship | Food Network | 2015 | 11 | 12 | — |
| Kids Court | Nickelodeon | 1988–1989 | 1 | 26 | — |
| The Kids From C.A.P.E.R. | NBC | 1976–1977 | 1 | 13 | — |
| Kids Incorporated | Syndication, Disney Channel | 1984–1994 | 9 | 149 | Comedy |
| Kids Say the Darndest Things | CBS | 1998 | 3 | 64 | Comedy |
| Kids' Writes | Nickelodeon | 1981–1983 | 1 | 17 | — |
| KidsClick | This TV, Roar | 2017–2019 | — | — | — |
| KiffAnimated series | Disney Channel | 2023–on air | 2 | 60 | Family |
| The Kill Point | Spike TV, Paramount Network | 2007 | 1 | 8 | — |
| Kill Reality | E! | 2005 | 1 | 8 | — |
| Killer Contact | Syfy | 2013 | 1 | 6 | Reality |
| Killer Inside: The Mind of Aaron Hernandez | Netflix | 2020–on air | 1 | 3 | Documentary |
| Killer Instinct | Fox | 2005 | 1 | 13 | Drama |
| Killer Karaoke | TruTV | 2012–2014 | 2 | 16 | Game show |
| The Killer Speaks | A&E | 2013–2014 | 2 | 9 | Documentary |
| Killer Women | ABC | 2014 | 1 | 8 | Drama |
| The Killing | AMC | 2011–2014 | 4 | 44 | Mystery |
| Killing Eve | BBC America | 2018–2022 | 4 | 32 | LGBTQ |
| The Killing Season | A&E | 2016 | 1 | 8 | — |
| Killjoys | CTV Sci-Fi Channel | 2015–2019 | 4 | 40 | Adventure |
| Kim of Queens | Lifetime | 2014–2015 | 2 | 22 | Reality |
| Kim PossibleAnimated series | Disney Channel | 2002–2007 | 4 | 87 | Comedy |
| Kimora: Life in the Fab Lane | Esquire Network | 2007–2011 | 4 | 36 | Reality |
| Kindergarten | HBO | 2001 | 1 | 13 | — |
| Kindergarten: The MusicalAnimated series | Disney Jr. | 2024–2025 | 1 | 15 | Children's |
| The Kindness Diaries | Netflix | 2017 | 2 | 26 | Reality |
| Kindred: The Embraced | Fox | 1996 | 1 | 8 | Vampire |
| KingMiniseries | NBC | 1978 | — | 3 | — |
| King and Conqueror | Prime Video, BBC One | 2025–on air | 1 | 8 | Historical drama |
| King & Maxwell | TNT | 2013 | 1 | 10 | Drama |
| King Arthur & the Knights of JusticeAnimated series | Syndication | 1992–1993 | 2 | 26 | Fantasy |
| The King Family Show | ABC | 1965–1969 | 2 | 39 | Variety show |
| King Leonardo and His Short SubjectsAnimated series | NBC | 1960–1963 | — | 182 | — |
| The King of Queens | CBS | 1998–2007 | 9 | 207 | Sitcom |
| King of the Crown | TLC | 2009 | 1 | 8 | Reality |
| King of the HillAnimated series | Adult Swim, Fox | 1997–2010 | 15 | 259 | Comedy |
| King of the Nerds | TBS | 2013–2015 | 3 | 24 | Reality |
| King's Crossing | ABC | 1982 | 1 | 10 | Soap opera |
| King Solomon's MinesMiniseries | Hallmark Channel | 2004 | 1 | 2 | Fantasy |
| King Star KingAnimated series | Adult Swim | 2013–2014 | — | 6 | Adult animation |
| Kingdom | Audience Network | 2014–2017 | 3 | 40 | LGBTQ |
| Kingdom Hospital | ABC | 2004 | 1 | 13 | Drama |
| Kingin' with Tyga | MTV2 | 2015–2016 | 1 | 6 | Reality |
| Kingpin | NBC | 2003 | 1 | 6 | — |
| Kings | NBC | 2009 | 1 | 13 | Drama |
| Kings Row | ABC | 1955–1956 | 1 | 7 | — |
| Kingston: Confidential | NBC | 1977 | 1 | 14 | — |
| Kino's Storytime | PBS | 1992–1997 | 3 | 24 | — |
| Kipo and the Age of WonderbeastsAnimated series | Netflix | 2020 | 3 | 30 | Fantasy |
| KipperAnimated series | Walt Disney Television | 1997–2000 | 6 | 78 | Children's |
| Kirby Buckets | Disney XD | 2014–2017 | 3 | 59 | Sitcom |
| Kirk | The WB | 1995–1997 | 2 | 32 | Sitcom |
| Kirstie | TV Land | 2013–2014 | 1 | 12 | Sitcom |
| Kirstie Alley's Big Life | A&E | 2010 | 1 | 12 | Reality |
| KissyfurAnimated series | NBC | 1986–1990 | 2 | 46 | — |
| Kitchen Accomplished | Food Network | 2004 | 1 | 13 | — |
| Kitchen Casino | Food Network | 2014 | 1 | 8 | Reality |
| Kitchen Confidential | Fox | 2005 | 1 | 13 | Sitcom |
| Kitchen Nightmares | Fox | 2007 | 9 | 112 | Cooking show |
| Kite Man: Hell Yeah!Animated series | HBO Max | 2024–on air | 1 | 10 | Adult animation |
| Kitti KatzAnimated series | Netflix | 2023–on air | 1 | 10 | Children's |
| Kiya & the Kimoja HeroesAnimated series | Disney Jr. | 2023–2024 | 1 | 26 | — |
| Klondike | NBC | 1960–1961 | 1 | 17 | Western |
| KlondikeMiniseries | Discovery Channel | 2014 | 1 | 3 | Historical drama |
| Klutter!Animated series | Fox Kids, Fox | 1995–1996 | — | 8 | — |
| The Knick | Cinemax | 2014–2015 | 2 | 20 | Period drama |
| Knife Fight | Esquire Network | 2013–2015 | 4 | 72 | Reality |
| Knife or Death | History | 2018–on air | 1 | 6 | Reality |
| Knight & Daye | NBC | 1989 | 1 | 7 | Sitcom |
| A Knight of the Seven Kingdoms | HBO | 2026–on air | 1 | 6 | Fantasy |
| Knight Rider | NBC | 1982–1986 | 4 | 90 | Crime |
| Knight Rider | NBC | 2008–2009 | 1 | 17 | Action |
| Knight Squad | Nickelodeon | 2018–2019 | 2 | 29 | Comedy |
| Knightfall | History | 2017–2019 | 2 | 18 | Historical drama |
| The Knights of Prosperity | ABC | 2007 | 1 | 13 | Sitcom |
| Knightwatch | ABC | 1988–1989 | 1 | 9 | — |
| Knock First | Freeform | 2003–2004 | 2 | 24 | Reality |
| Knock Knock Live | Fox | 2015 | 1 | 2 | Reality |
| Knots Landing | CBS | 1979–1993 | 14 | 344 | Soap opera |
| Knuckles | Paramount+ | 2024 | 1 | 6 | Comedy |
| Koala ManAnimated series | Hulu | 2023–on air | 1 | 8 | Animated sitcom |
| Kocktails with Khloé | FYI | 2016 | 1 | 14 | Talk show |
| Kodiak | ABC | 1974 | 1 | 13 | — |
| Kojak | CBS | 1973–1978 | 5 | 118 | Crime |
| Kojak | USA Network | 2005 | 1 | 10 | Drama |
| Koji No BokenWeb series | YouTube | 2021–on air | 1 | 10 | Black comedy |
| Kolchak: The Night Stalker | ABC | 1974–1975 | 1 | 20 | Suspense |
| The Kominsky Method | Netflix | 2018–2021 | 3 | 22 | Comedy-drama |
| Kong: King of the ApesAnimated series | Netflix | 2016–2018 | 2 | 23 | — |
| Kong: The Animated SeriesAnimated series | Fox Kids | 2001–2006 | 2 | 40 | — |
| Korg: 70,000 B.C. | ABC | 1974–1975 | 1 | 16 | — |
| Kourtney and Khloe Take Miami | E! | 2009–2013 | 3 | 30 | Reality |
| Kourtney and Khloé Take The Hamptons | E! | 2014–2015 | 1 | 10 | Reality |
| Kourtney and Kim Take New York | E! | 2011–2012 | 2 | 20 | Reality |
| Kraft Music Hall | NBC | 1958–1971 | 13 | 117 | — |
| Kraft Mystery Theatre | NBC | 1961–1963 | 3 | 47 | — |
| Kraft Suspense Theatre | NBC | 1963–1965 | 2 | 59 | Anthology |
| Kraft Television Theatre | NBC | 1947–1958 | 11 | 587 | Anthology |
| KrapopolisAnimated series | Fox | 2023–on air | 3 | 58 | Adult animation |
| Kratts' Creatures | PBS Kids, PBS | 1996 | 1 | 50 | — |
| Kristin | NBC | 2001 | 1 | 13 | Sitcom |
| Kröd Mändoon and the Flaming Sword of Fire | BBC Two | 2009 | 1 | 6 | Fantasy |
| The Krofft Supershow | ABC | 1976–1978 | — | 32 | — |
| The Krofft Superstar Hour | NBC | 1978–1979 | — | 13 | — |
| Kroll Show | Comedy Central | 2013–2015 | 3 | 30 | Comedy |
| Krypto the SuperdogAnimated series | Cartoon Network | 2005–2006 | 2 | 39 | — |
| Krypton | Syfy | 2018–2019 | 2 | 20 | Action |
| The Krypton Factor | ABC, Syndication | 1981 | — | — | Game show |
| Kukla, Fran and Ollie | NBC | 1947–1957 | — | — | — |
| Kulipari: An Army of Frogs | Netflix | 2016–2018 | 1 | 13 | — |
| Kung Fu | ABC | 1972–1975 | 3 | 62 | Action |
| Kung Fu | The CW | 2021–2023 | 3 | 39 | Action |
| Kung Fu Panda: Legends of AwesomenessAnimated series | Nickelodeon | 2011–2016 | 3 | 80 | Comedy |
| Kung Fu Panda: The Dragon KnightAnimated series | Netflix | 2022–2023 | 3 | 42 | Action |
| Kung Fu Panda: The Paws of DestinyAnimated series | Prime Video | 2018–2019 | 1 | 26 | Action |
| Kung Fu: The Legend Continues | Prime Time Entertainment Network | 1993–1997 | 4 | 87 | Action |
| Kuu Kuu HarajukuAnimated series | Nickelodeon, Nick Jr. Channel | 2015–2019 | 3 | 78 | Comedy |
| The Kwicky Koala ShowAnimated series | CBS | 1981 | 1 | 16 | — |
| Kwik Witz | Syndication | 1996–1999 | 3 | — | — |
| Kyle XY | Freeform | 2006–2009 | 4 | 43 | Drama |