| The N's Student Body | TeenNick | 2008 | 1 | 8 | Reality |
| N.Y.P.D. | ABC | 1967–1969 | 2 | 49 | Police drama |
| Nailed It! | Netflix | 2018–on air | 3 | 19 | Reality |
| Nailed It! Holiday! | Netflix | 2018–on air | — | 7 | Reality |
| ¡Nailed it! México | Netflix | 2019–on air | 3 | 18 | Reality |
| Naked and Afraid | Discovery Channel | 2013 | 17 | 216 | Reality |
| Naked and Afraid: Apocalypse | Discovery Channel | 2025–on air | — | — | Reality |
| Naked and Afraid XL | Discovery Channel | 2015 | 1 | 10 | — |
| The Naked Brothers Band | Nickelodeon | 2007–2009 | 3 | 40 | Teen sitcom |
| Naked City | ABC | 1958–1963 | 4 | 138 | Crime |
| Naked Science | National Geographic | 2004–2011 | 8 | 151 | Documentary |
| The Naked Truth | NBC, ABC | 1995–1998 | 3 | 55 | Sitcom |
| Naked Vegas | Syfy | 2013 | 1 | 6 | Reality |
| Nakia | ABC | 1974 | 1 | 13 | Police procedural |
| The Name of the Game | NBC | 1968–1971 | 3 | 76 | Crime |
| The Name's the Same | ABC | 1951–1955 | 4 | 140 | Panel game |
| Name That TuneGame show | NBC, Fox | 1952–1985 | 43 | 195 | Music |
| Name That Video | VH1 | 2001 | — | 90 | Game show |
| Name Your Adventure | NBC | 1992–1995 | 3 | 4 | Reality |
| Nancy | NBC | 1970–1971 | 1 | 17 | Sitcom |
| Nancy Drew | The CW | 2019–2023 | 4 | 62 | Detective |
| The Nancy Walker Show | ABC | 1976 | 1 | 13 | LGBTQ |
| The Nanny | CBS | 1993–1999 | 6 | 146 | Sitcom |
| Nanny 911 | Fox, CMT | 2004–2009 | 4 | 51 | Reality |
| Nanny and the Professor | ABC | 1970–1971 | 3 | 54 | Fantasy |
| Naomi | The CW | 2022 | 1 | 13 | — |
| Napoleon and Josephine: A Love StoryMiniseries | ABC | 1987 | — | 3 | Biographical |
| Napoleon DynamiteAnimated series | Fox | 2012 | 1 | 6 | Comedy |
| Narcos | Netflix | 2015–2017 | 3 | 30 | Biographical |
| Narcos: Mexico | Netflix | 2018–2021 | 3 | 30 | Drama |
| NASCAR in Primetime | ABC | 2007 | — | 5 | Reality |
| NASCAR on Fox | Fox | 2001 | 15 | — | — |
| NASCAR on TNT | TNT | 2001–2014 | — | — | — |
| NASCAR Racers | Fox | 1999–2001 | 2 | 26 | — |
| The Nash Airflyte Theater | CBS | 1950–1951 | 1 | 26 | Anthology |
| Nash Bridges | CBS, Peretz | 1996–2001 | 6 | 122 | Action |
| Nashville | ABC | 2012–2018 | 6 | 124 | LGBTQ |
| Nashville 99 | CBS | 1977 | 1 | 4 | — |
| Nashville Squares | CMT | 2019 | — | — | Game show |
| Nashville Star | NBC, USA Network | 2003–2008 | — | 52 | Singing talent show |
| Nasty Boys | NBC | 1990 | 1 | 14 | — |
| The Nate Berkus Show | Syndication | 2010–2012 | 2 | 291 | Talk show |
| Nathan for You | Comedy Central | 2013–2017 | 4 | 31 | Comedy |
| Nation's Dumbest | Fox | 2026–on air | 1 | 10 | Reality |
| National Bingo Night | ABC | 2007 | 1 | 6 | — |
| National Geographic Explorer | CNBC, MS NOW | 1985 | — | 233 | Geography |
| National Treasure: Edge of History | Disney+ | 2022–2023 | 1 | 10 | Adventure |
| National Velvet | NBC | 1960–1962 | 2 | 54 | — |
| Nature | PBS | 1982 | 36 | 521 | Documentary |
| Nature CatAnimated series | PBS Kids | 2015–2024 | 5 | 91 | Children's |
| Navy Log | CBS | 1955–1958 | 3 | 104 | Anthology |
| NBA on CBS | CBS | 1973–1990 | 17 | 276 | — |
| NBA on NBC | NBC | 1990–2002 | 12 | — | — |
| NBA Today | ESPN, ESPN2 | 2021–on air | — | — | — |
| The NBC Comedy Hour | NBC | 1956 | 1 | 18 | Comedy |
| The NBC Monday Movie | NBC | 1963–2003 | — | — | Anthology |
| The NBC Mystery Movie | NBC | 1971–1977 | 6 | — | — |
| NBC News at SunriseNews program | NBC | 1983–1999 | 16 | — | News |
| NBC News Daily | NBC | 2022–on air | — | — | News |
| NBC Nightly News with Tom LlamasNews program | NBC | 1948–1956 | — | 4,029 | News |
| NBC NightsideNews program | NBC | 1991–1998 | 7 | — | — |
| NBC Sunday Night Football | Peacock, NBC Sports | 2006 | 11 | 227 | National football league on |
| NBC Sunday Showcase | NBC | 1959–1960 | 1 | 23 | — |
| NCIS | CBS | 2003 | 24 | 507 | Action |
| NCIS: Hawaiʻi | CBS | 2021–2024 | 3 | 54 | Drama |
| NCIS: Los Angeles | CBS | 2009–2023 | 14 | 323 | Action |
| NCIS: New Orleans | CBS | 2014–2021 | 7 | 155 | Action |
| NCIS: Origins | CBS | 2024–on air | 3 | 46 | — |
| NCIS: Tony & Ziva | Paramount+ | 2025–on air | 1 | 10 | Crime |
| Neagley | Prime Video | 2026–on air | — | — | Crime drama |
| Nearly Departed | NBC | 1989 | 1 | 6 | Sitcom |
| Necesito una AmigaTalk show | Cisneros Media | 2005 | — | — | Talk show |
| Necessary Roughness | USA Network | 2011–2013 | 3 | 38 | Comedy-drama |
| Ned & Stacey | Fox | 1995–1997 | 2 | 35 | Sitcom |
| Ned's Declassified School Survival Guide | Nickelodeon | 2004–2007 | 3 | 55 | Slapstick |
| Need to KnowNews program | PBS | 2010–2013 | 3 | 166 | — |
| Needles and Pins | NBC | 1973 | 1 | 14 | Sitcom |
| The Neighborhood | CBS | 2018–2026 | 8 | 155 | Comedy |
| The NeighborsGame show | ABC | 1975–1976 | 1 | 65 | Game show |
| The Neighbors | ABC | 2012–2014 | 2 | 44 | Science fiction |
| Neighbors | HBO | 2026–on air | — | — | Documentary |
| Neighbors from HellAnimated series | TBS | 2010 | 1 | 10 | Comedy |
| Neighbors (TV Series 2020) | | 2020–on air | — | — | LGBTQ |
| Neil's Puppet DreamsWeb series | | 2012–2013 | 1 | 7 | LGBTQ |
| Nellyville | BET | 2014–2015 | 2 | 18 | — |
| Nemesis | Netflix | 2026–on air | — | — | Crime drama |
| Neo YokioAnimated series | Netflix | 2017–2018 | 1 | 6 | Fantasy |
| Neon | Netflix | 2023–on air | — | 8 | Comedy |
| Neon Joe, Werewolf Hunter | Cartoon Network, Adult Swim | 2015–2017 | 1 | 5 | — |
| Nerd Nation | TechTV | 2004 | — | 10 | — |
| Nerds 2.0.1Miniseries | Channel 4 | 1998 | — | — | Documentary |
| NerdTV | PBS | 2005 | 1 | 13 | — |
| Nero Wolfe | NBC | 1981 | 1 | 14 | — |
| Nero Wolfe | A&E | 2001–2002 | 2 | 29 | — |
| The Net | USA Network | 1998–1999 | 1 | 22 | Adventure |
| NET Playhouse | National Educational Television | 1966–1972 | 6 | 228 | Anthology |
| Netflix Presents: The Characters | Netflix | 2016 | — | — | — |
| Neuromancer | Apple TV | 2027upcoming | 1 | 10 | Cyberpunk |
| Never Have I Ever | Netflix | 2020–2023 | 4 | 40 | Comedy-drama |
| Never Mind the Buzzcocks | VH1, British Broadcasting Corporation | 2002 | 1 | 5 | Panel game |
| Never Too Young | ABC | 1965–1966 | — | 192 | Soap opera |
| The Nevers | HBO, Tubi | 2021–2023 | 1 | 12 | Science fiction |
| The New Adventures of BatmanAnimated series | CBS | 1977 | 1 | 16 | — |
| The New Adventures of Beans Baxter | Fox | 1987 | 1 | 17 | — |
| The New Adventures of Charlie Chan | Syndication | 1957–1958 | 1 | 39 | Drama |
| The New Adventures of GilliganAnimated series | ABC | 1974–1975 | 2 | 24 | — |
| The New Adventures of He-ManAnimated series | | 1990 | 1 | 65 | Science fiction |
| The New Adventures of Huckleberry Finn | NBC | 1968–1969 | 1 | 20 | Comedy |
| The New Adventures of Jonny Quest | Syndication | 1986–1987 | — | 13 | — |
| The New Adventures of Mighty Mouse and Heckle & JeckleAnimated series | CBS | 1979–1980 | 1 | 48 | Comedy |
| The New Adventures of Old Christine | CBS | 2006–2010 | 5 | 88 | Sitcom |
| The New Adventures of Perry Mason | CBS | 1973–1974 | 1 | 15 | — |
| The New Adventures of Robin Hood | TNT | 1997–1998 | 4 | 52 | Fantasy |
| The New Adventures of Speed Racer | Syndication | 1993–1994 | 1 | 13 | — |
| The New Adventures of SupermanAnimated series | CBS | 1966–1970 | 4 | 68 | Science fiction |
| The New Adventures of Winnie the PoohAnimated series | ABC, Disney Channel | 1988–1991 | 4 | 52 | Children's |
| The New Adventures of ZorroAnimated series | CBS | 1981 | 1 | 13 | — |
| The New Adventures of ZorroAnimated series | Kids' WB | 1997–1998 | 2 | 26 | — |
| New Amsterdam | Fox | 2008 | 1 | 8 | Police procedural |
| New Amsterdam | NBC | 2018–2023 | 5 | 89 | Medical drama |
| The New Andy Griffith Show | CBS | 1971 | 1 | 10 | Sitcom |
| The New Archie and Sabrina Hour | NBC | 1977 | 1 | 13 | Crossover |
| The New Archies | NBC | 1987 | 1 | 14 | Animated sitcom |
| The New Atlanta | Bravo | 2013 | 1 | 8 | Reality |
| New Attitude | ABC | 1990 | 1 | 8 | Sitcom |
| The New Batman AdventuresAnimated series | Kids' WB, The WB | 1997–1999 | 2 | 24 | Superhero |
| The New Batman/Superman AdventuresAnimated series | The WB | 1997–2000 | — | — | — |
| The New Bob Cummings Show | CBS | 1961–1962 | 1 | 22 | Sitcom |
| The New Breed | ABC | 1961–1962 | 1 | 36 | Detective |
| New Day With John Berman and Brianna Keilar | HLN, CNN | 2013–2022 | — | — | News |
| The New Detectives | Discovery Channel | 1996–2004 | 9 | 121 | Documentary |
| The New Dick Van Dyke Show | CBS | 1971–1974 | 3 | 72 | Sitcom |
| The New Dragnet | Syndication | 1989–1990 | 2 | 39 | Detective |
| The New Edition Story | BET | 2017 | — | — | Biographical |
| The New Fantastic FourAnimated series | NBC | 1978 | 1 | 13 | Science fiction |
| The New Fred and Barney ShowAnimated series | NBC | 1979 | 2 | 17 | — |
| The New Ghostwriter Mysteries | CBS | 1997 | 1 | 13 | — |
| The New Gidget | Syndication | 1986–1988 | 2 | 44 | Sitcom |
| New Girl | Fox | 2011–2018 | 7 | 146 | Sitcom |
| New Hampshire Chronicle | WMUR-TV | 2001 | — | — | Magazine format |
| New Kids on the BlockAnimated series | Disney Channel | 1990 | 1 | 14 | — |
| A New Kind of Family | ABC | 1979–1980 | 1 | 10 | Sitcom |
| The New Land | ABC | 1974 | 1 | 13 | — |
| The New Lassie | Syndication | 1989–1992 | 2 | 48 | — |
| The New Leave It to Beaver | CBS | 1983–1989 | 4 | 105 | Sitcom |
| The New Look | Apple TV | 2024–on air | 1 | 10 | — |
| New Looney TunesAnimated series | Boomerang, Cartoon Network | 2015–2019 | 3 | 102 | Comedy |
| The New Loretta Young Show | CBS | 1962–1963 | 1 | 26 | Comedy-drama |
| The New Mike Hammer | CBS | 1986 | — | 22 | — |
| New Money | E! | 2015 | 1 | 6 | — |
| The New Movie Show with Chris Gore | | 2000 | — | — | Talk show |
| The New Normal | NBC | 2012–2013 | 1 | 22 | LGBTQ |
| The New Odd Couple | ABC | 1982–1983 | 1 | 18 | Sitcom |
| The New People | ABC | 1969–1970 | 1 | 17 | Drama |
| The New Phil Silvers Show | CBS | 1963–1964 | 1 | 30 | Sitcom |
| The New PopeMiniseries | HBO, Sky Atlantic | 2020 | 1 | 9 | Drama |
| The New Price Is Right | Syndication | 1994–1995 | — | 80 | Game show |
| The New Scooby and Scrappy-Doo ShowAnimated series | ABC | 1983–1984 | 2 | 52 | Comedy |
| The New Scooby-Doo MoviesAnimated series | CBS | 1972–1973 | 2 | 24 | Crossover |
| The New ShmooAnimated series | NBC | 1979–1980 | 1 | 16 | — |
| The New Three StoogesAnimated series | Syndication | 1965–1966 | — | — | Comedy |
| The New WKRP in Cincinnati | Syndication | 1991–1993 | 2 | 47 | Sitcom |
| The New Yankee Workshop | PBS | 1989 | — | 284 | — |
| The New Yogi Bear ShowAnimated series | Syndication | 1988 | 1 | 45 | Comedy |
| New York Confidential | Syndication | 1958–1959 | 1 | 39 | Drama |
| New York Goes to Hollywood | VH1 | 2008 | 1 | 8 | Reality |
| New York Goes to Work | VH1 | 2009 | 1 | 9 | Reality |
| New York News | CBS | 1995 | 1 | 13 | Drama |
| New York Undercover | Fox | 1994–1998 | 4 | 89 | Police drama |
| Newhart | CBS | 1982–1990 | 8 | 184 | Sitcom |
| Newlyweds: Nick and Jessica | MTV | 2003–2005 | 3 | 41 | Reality |
| Newlyweds: The First Year | Bravo | 2013–2016 | 3 | 28 | Reality |
| Newport Harbor: The Real Orange County | MTV | 2007–2008 | 2 | 12 | Reality |
| NewsNation PrimeNews program | WGN America, NewsNation | 2020–on air | — | — | Current affairs |
| NewsRadio | NBC | 1995–1999 | 5 | 97 | Sitcom |
| Newsreaders | Adult Swim, Cartoon Network | 2013–2015 | 2 | 24 | Comedy |
| The Newsroom | HBO | 2012–2014 | 3 | 25 | Drama |
| Newsweek Views the News | DuMont | 1948–1950 | — | — | News |
| Newton's Cradle | TNT Novelas, Z Living | 2021 | 1 | 30 | Crime |
| The Newz | Syndication | 1994–1995 | 1 | 61 | Sketch comedy |
| Next | MTV | 2005–2008 | 6 | 288 | Dating game show |
| Next | Fox | 2020 | 1 | 10 | Drama |
| Next Action Star | NBC | 2004 | 1 | 10 | Reality |
| The Next Best Thing | ABC | 2007 | — | 8 | Reality |
| The Next Big Thing: NY | Oxygen | 2012 | 1 | 6 | Reality |
| Next Caller | NBC | 2012 | 1 | 4 | Comedy |
| The Next: Fame Is at Your Doorstep | The CW | 2012 | 1 | 8 | — |
| Next Great Baker | TLC | 2010–2014 | 4 | 40 | — |
| Next In Fashion | Netflix | 2020–2023 | 2 | 20 | Reality |
| The Next Iron Chef | Food Network | 2007–2012 | 5 | 38 | Reality |
| The Next Step | KRON-TV | 1991–1996 | 5 | — | — |
| Next Step Realty: NYC | Freeform | 2015 | 1 | 10 | — |
| NFL Cheerleader Playoffs | NFL Network | 2006 | 1 | 11 | — |
| NFL Rush ZoneAnimated series | Nicktoons | 2010–2014 | 3 | 65 | Action |
| The NFL Today | CBS | 1961 | 48 | — | Pre-game show |
| NFL Top 100 | NFL Network | 2011 | 14 | 151 | — |
| NHL on Fox | Fox | 1995–1999 | 5 | 13 | — |
| NHL on Global | Global Television Network | 1987–1988 | 2 | — | — |
| NHL on USA | USA Network | 1979–1985 | 6 | — | — |
| Ni Hao, Kai-LanAnimated series | Nickelodeon | 2008–2011 | 3 | 42 | Family |
| Nichols | NBC | 1971–1972 | 1 | 24 | Western |
| Nick Arcade | Nickelodeon | 1992 | 2 | 84 | — |
| The Nick Cannon Show | Nickelodeon | 2002–2003 | 2 | 27 | — |
| Nick Freno: Licensed Teacher | The WB | 1996–1998 | 2 | 43 | Sitcom |
| Nick NewsNews program | Nickelodeon | 1992–2015 | 24 | 178 | Educational |
| Nick Swardson's Pretend Time | Comedy Central | 2010–2011 | 2 | 14 | — |
| Nickelodeon Guts | Nickelodeon | 1992–1995 | 4 | 160 | Game show |
| Nickelodeon Launch Box | Nickelodeon | 1991–1994 | 1 | 9 | — |
| Nickelodeon Robot Wars | Nickelodeon | 2002 | — | 6 | — |
| Nickelodeon's Unfiltered | Nickelodeon | 2020–2021 | — | — | Game show |
| Nickelodeon Splat! | Nickelodeon | 2004 | 1 | — | Game show |
| Nicky Jam: El Ganador | Telemundo | 2018–on air | 1 | 13 | — |
| Nicky, Ricky, Dicky & Dawn | Nick at Nite, TeenNick | 2014–2018 | 4 | 69 | Sitcom |
| The Night Agent | Netflix | 2023–on air | 3 | 30 | Mystery |
| Night Calls | Playboy TV | 1995–2007 | 11 | 25 | LGBTQ |
| Night Court | NBC | 1984–1992 | 9 | 193 | Sitcom |
| Night Court | NBC | 2023–2025 | 3 | 47 | Court show |
| Night Flight | USA Network | 2018–on air | — | — | Anthology |
| Night Gallery | NBC | 1969–1973 | 3 | 50 | Fantasy |
| Night Man | | 1997–1999 | 2 | 44 | Science fiction |
| The Night OfMiniseries | HBO | 2016 | 1 | 8 | Drama |
| The Night Shift | NBC | 2014–2017 | 4 | 45 | LGBTQ |
| Night Sky | Prime Video | 2022–on air | 1 | 8 | Drama |
| Night Stalker | ABC | 2005 | 1 | 10 | Thriller |
| Night Stalker: The Hunt for a Serial KillerMiniseries | Netflix | 2021 | 1 | 4 | True crime |
| Night Stand with Dick Dietrick | Syndication, E! | 1995–1999 | — | — | Comedy |
| Night Tracks | TBS | 1983–1992 | — | — | — |
| Night Visions | Fox | 2001–2002 | 1 | 26 | Anthology |
| Nightflyers | Syfy | 2018 | 1 | 10 | Science fiction |
| Nightingales | NBC | 1989 | 1 | 13 | — |
| The Nightlife | TeenNick | 2010 | 1 | 4 | — |
| Nightly Business Report | PBS, WPBT | 1979–2019 | 40 | 12,000 | News magazine |
| Nightly Pop | E! News, E! | 2018–on air | 4 | 263 | Late-night talk show |
| The Nightly Show with Larry Wilmore | Comedy Central | 2015–2016 | 2 | 259 | — |
| Nightmare Cafe | NBC | 1992 | 1 | 6 | Science fiction |
| Nightmare Classics | Showtime | 1989 | 1 | 4 | — |
| Nightmare NedAnimated series | ABC | 1997 | 1 | 25 | Comedy |
| The Nightmare Room | Kids' WB | 2001–2002 | 1 | 13 | Horror |
| Nightmare Theatre | KIRO-TV | 1964–1978 | 15 | — | Horror |
| The Nightmare Years | TNT | 1989 | — | 4 | — |
| Nightmares & Dreamscapes: From the Stories of Stephen KingMiniseries | TNT | 2006 | 1 | 8 | Drama |
| Nightwatch | A&E | 2015 | 6 | 65 | Reality |
| Nikita | The CW | 2010–2013 | 4 | 73 | Action |
| Nikita UnfilteredWeb series | YouTube | 2020–on air | — | 3 | — |
| Nikki | The WB | 2000–2002 | 2 | 41 | Sitcom |
| Nikki & Sara Live | MTV | 2013 | 2 | 24 | Comedy |
| Nina Needs to Go! | Disney Jr. | 2014–2017 | 1 | 20 | Children's |
| Nina's Little Fables | Universal Kids/MeTV Toons | 2010–2013 | 13 | 24 | — |
| Nina's World | NBC Kids, Sprout | 2015–2018 | 2 | 52 | — |
| The Nine | ABC | 2006–2007 | 1 | 13 | Mystery |
| Nine for IX | ESPN | 2013 | — | 9 | Association football |
| The Nine Lives of Chloe King | Freeform | 2011 | 1 | 10 | Drama |
| Nine Perfect Strangers | Hulu | 2021 | 2 | 12 | Drama |
| Nine Thirty Curtain | DuMont | 1953–1954 | 1 | 12 | Anthology |
| The Nineties | CNN | 2013–2017 | — | 7 | — |
| Ninja Turtles | Fox Kids | 1997–1998 | 1 | 26 | Children's |
| NinjagoAnimated series | Cartoon Network, Nickelodeon | 2011–2022 | 15 | 160 | — |
| Niños Ricos, Pobres Padres | Telemundo | 2009–2010 | — | 125 | Telenovela |
| Nintendo Week | | 2009–2012 | 7 | — | — |
| Nip/Tuck | FX | 2003–2010 | 6 | 100 | LGBTQ |
| Nitro Circus | MTV | 2009 | 2 | 21 | Comedy |
| The Nixon Interviews | CBS, Mutual Broadcasting System | 1977 | 1 | 5 | Biographical |
| The No. 1 Ladies' Detective Agency | BBC One | 2008–2009 | 1 | 7 | Detective |
| No Activity | Paramount+ | 2017–2021 | 1 | 8 | — |
| No Good Deed | Netflix | 2024–on air | 1 | 8 | Comedy |
| No Good Nick | Netflix | 2019 | 2 | 10 | Comedy |
| No Ordinary Family | ABC | 2010–2011 | 1 | 20 | Science fiction |
| No Tomorrow | The CW | 2016–2017 | 1 | 13 | Science fiction |
| No, You Shut Up! | Fusion | 2013–2016 | 4 | 58 | — |
| Noah Knows Best | Nickelodeon | 2000–2001 | 1 | 13 | Teen sitcom |
| Noah's Arc | Logo TV | 2005–2006 | 2 | 17 | Drama |
| Noah's ArkMiniseries | NBC, Telecinco | 1999 | 1 | 2 | Romance |
| Noble HouseMiniseries | NBC | 1988 | — | 4 | Action |
| Nobodies | TV Land | 2017–2018 | 2 | 24 | Comedy |
| Nobody's Perfect | ABC | 1980 | 1 | 8 | Sitcom |
| Nobody Wants This | Netflix | 2024–on air | 3 | 30 | Fiction |
| Noches con Platanito | Estrella TV | 2013–2020 | — | 692 | — |
| Nocturne | Apple TV | 2026upcoming | — | — | Crime drama |
| Noddy, Toyland DetectiveAnimated series | Milkshake!, Universal Kids/MeTV Toons | 2016–2017 | 1 | 52 | — |
| NOFX: Backstage Passport | Fuse | 2008 | 1 | 8 | Documentary |
| Noodle and Doodle | NBC Kids, Sprout | 2010–2013 | 2 | 26 | — |
| Norby | NBC | 1955 | 1 | 13 | Sitcom |
| Norm Macdonald Has a Show | Netflix | 2018–on air | 1 | 10 | — |
| The Norm Show | ABC | 1999–2001 | 3 | 54 | Sitcom |
| Normal Life | CBS | 1990 | 1 | 13 | Sitcom |
| Normal, Ohio | Fox | 2000 | 1 | 12 | Sitcom |
| North America | Discovery Channel | 2013 | 1 | 7 | — |
| North and SouthMiniseries | ABC | 1985–1994 | 3 | 15 | War |
| North and South: Book IIMiniseries | | 1986 | — | 6 | — |
| North Shore | Fox | 2004–2005 | 1 | 21 | Soap opera |
| North Woods Law | Animal Planet | 2012 | 13 | 124 | Reality |
| Northern Exposure | CBS | 1990–1995 | 6 | 110 | Comedy-drama |
| Northwest Afternoon | KOMO-TV | 1984–2008 | 24 | — | — |
| Northwest Passage | NBC | 1958–1959 | 1 | 26 | Western |
| NOS4A2 | AMC | 2019–2020 | 2 | 20 | Horror |
| Nostalgia CriticWeb series | YouTube | 2007 | 10 | 561 | Review |
| Nostradamus Effect | History | 2009 | 1 | 12 | — |
| Not Dead Yet | ABC | 2023–2024 | 2 | 23 | — |
| Not Necessarily the News | HBO | 1983–1990 | 8 | 72 | — |
| Not Quite Narwhal | Netflix | 2023–2024 | 2 | 26 | — |
| Not Safe with Nikki Glaser | Comedy Central | 2016 | 1 | 10 | Talk show |
| Not Today Bianca | Logo TV | 2016 | 1 | 2 | — |
| The Not-Too-Late Show with ElmoGame show | HBO Max, Hop! Channel | 2020–2021 | — | — | — |
| Notes from the Underbelly | ABC | 2008 | 2 | 24 | Sitcom |
| Nothing in Common | NBC | 1987 | 1 | 7 | Sitcom |
| Nothing Sacred | ABC | 1997–1998 | 1 | 20 | Drama |
| Notorious | FYI | 2004–2007 | 4 | 152 | Documentary |
| Notorious | ABC | 2016 | 1 | 10 | Drama |
| Notre Dame Football on NBC | NBC | 1991 | 27 | 175 | — |
| Nova | PBS | 1974 | 50 | 959 | Documentary |
| Nova ScienceNow | PBS | 2005–2012 | 6 | 30 | Documentary |
| November 13: Attack on ParisMiniseries | Netflix | 2018 | 1 | 3 | Documentary |
| Now and Again | CBS | 1999–2000 | 1 | 22 | Science fiction |
| Now and Then | Apple TV | 2022 | — | — | Thriller |
| Now Apocalypse | Starz | 2019 | 1 | 10 | LGBTQ |
| NOW on PBS | PBS | 2002–2010 | 6 | 150 | Documentary |
| Now You See It | CBS | 1974–1975 | — | — | Game show |
| Nowhere Man | UPN | 1995–1996 | 1 | 25 | Mystery |
| NTSF:SD:SUV:: | Cartoon Network, Adult Swim | 2011–2013 | 3 | 39 | Black comedy |
| Nuestra Belleza Latina | Univision | 2007 | 11 | 110 | Reality |
| Nuestra Belleza Latina 2007 | Univision | 2007 | — | 11 | — |
| Nuestra Belleza Latina 2012 | Univision | 2012 | — | 12 | — |
| Nuestra Belleza Latina 2013 | Univision | 2013 | — | 11 | — |
| Nuestra Belleza Latina 2014 | Univision | 2014 | — | 13 | — |
| NUMB3RS | CBS | 2005–2010 | 6 | 118 | Procedural drama |
| The Numbers Game | National Geographic | 2013 | 2 | 15 | Documentary |
| NurembergMiniseries | TNT | 2000 | — | 2 | Docudrama |
| Nurse | CBS | 1981–1982 | 2 | 25 | — |
| Nurse Jackie | Showtime | 2009–2015 | 7 | 80 | LGBTQ |
| The Nurses | ABC | 1965–1967 | — | 395 | Soap opera |
| Nurses | NBC | 1991–1994 | 3 | 68 | Sitcom |
| The Nutt House | NBC | 1989 | 1 | 10 | Sitcom |
| The Nutty Squirrels PresentAnimated series | Syndication | 1960 | 1 | — | Children's |
| NY Ink | TLC | 2011–2013 | 3 | 23 | Reality |
| NY MedMiniseries | ABC | 2012–2014 | 2 | 16 | Documentary |
| NY Wired | Syndication | 1997–1999 | — | 100 | — |
| NYC 22 | CBS | 2012 | 1 | 13 | Police procedural |
| NYC Prep | Bravo | 2009 | 1 | 9 | Reality |
| NYPD Blue | ABC | 1993–2005 | 12 | 261 | Police procedural |