| The Little Mermaid | September 12, 1992 | CBS | 31 |
| The Little Polar Bear | 1992 | — | 21 |
| The Little Rascals | September 25, 1982 | American Broadcasting Company | 22 |
| The Little Spudragon | February 1, 2022 | ICI Radio-Canada Télé | 15 |
| The Little Witches | September 3, 1997 | TF1 | 26 |
| The Littles | September 10, 1983 | American Broadcasting Company | 29 |
| The Loud House | May 2, 2016 | Nickelodeon | 268 |
| The Magic Roundabout | 1963 | Office de radiodiffusion télévision française | 750 |
| The Marvelous Misadventures of Flapjack | June 5, 2008 | Cartoon Network | 46 |
| The Mask: Animated Series | August 12, 1995 | CBS | 54 |
| The Midnight Gospel | April 20, 2020 | Netflix | 8 |
| The Mighty B! | April 26, 2008 | Nickelodeon | 40 |
| The Mojicons | October 19, 2015 | STS | 26 |
| The Mr. Men Show | February 4, 2008 | Channel 5 | 103 |
| The Mysteries of Providence | 2002 | TF1 | 26 |
| The Mysterious Cities of Gold | November 17, 2012 | TF1 | 78 |
| The New Adventures of Flash Gordon | September 22, 1979 | NBC | 32 |
| The New Adventures of He-Man | September 1, 1990 | — | 65 |
| The New Adventures of Mighty Mouse and Heckle & Jeckle | September 8, 1979 | CBS | 48 |
| The New Adventures of Ocean Girl | February 11, 2000 | Network 10 | 26 |
| The New Adventures of Winnie the Pooh | January 17, 1988 | American Broadcasting Company, Disney Channel | 52 |
| The New Scooby and Scrappy-Doo Show | September 10, 1983 | American Broadcasting Company | 52 |
| The New Three Stooges | October 1965 | Broadcast syndication | — |
| The New Woody Woodpecker Show | May 8, 1999 | Fox Broadcasting Company | 52 |
| The New Yogi Bear Show | September 12, 1988 | Broadcast syndication | 45 |
| The Oblongs | April 1, 2001 | The WB | 13 |
| The Oddball Couple | September 6, 1975 | American Broadcasting Company | 16 |
| The Off-Beats | November 29, 1996 | Nickelodeon | 14 |
| The Ollie & Moon Show | May 27, 2017 | France 4, TVOKids, Universal Kids, Knowledge Kids | 52 |
| The Osmonds | September 9, 1972 | American Broadcasting Company | 17 |
| The Owl | 2003 | France 3 | 52 |
| The Owl House | January 10, 2020 | Disney Channel, Disney XD | 43 |
| The Patrick Star Show | July 9, 2021 | Nickelodeon | 39 |
| The Penguins of Madagascar | November 29, 2008 | Nickelodeon | 80 |
| The Pink Panther | September 13, 1993 | Broadcast syndication | 60 |
| The Pink Panther Show | December 18, 1964 | NBC | 124 |
| The PJs | January 10, 1999 | Fox Broadcasting Company | 48 |
| The Plucky Duck Show | September 19, 1992 | Fox Broadcasting Company, Fox Kids | 13 |
| The Porky Pig Show | September 20, 1964 | — | 26 |
| The Powerpuff Girls | November 18, 1998 | Cartoon Network | 78 |
| The Powerpuff Girls | April 4, 2016 | Cartoon Network | 119 |
| The Problem Solverz | April 4, 2011 | Cartoon Network | 26 |
| The Puppy's Further Adventures | September 25, 1982 | American Broadcasting Company | 21 |
| The Quick Draw McGraw Show | September 28, 1959 | Broadcast syndication | 35 |
| The Real Ghostbusters | September 13, 1986 | American Broadcasting Company | 140 |
| The Reluctant Dragon & Mr. Toad Show | September 12, 1970 | American Broadcasting Company | 17 |
| The Ren & Stimpy Show | August 11, 1991 | Nickelodeon | 52 |
| The Replacements | July 28, 2006 | Disney Channel, Toon Disney, ABC Kids | 52 |
| The Return of Dogtanian | — | La 1 | 26 |
| The Richie Rich/Scooby-Doo Show | November 8, 1980 | American Broadcasting Company | 21 |
| The Ricky Gervais Show | February 19, 2010 | HBO | 39 |
| The Ripping Friends | September 7, 2001 | Nickelodeon, Fox Kids, Treehouse TV, La 1, Cartoon Network | 13 |
| The Road Runner Show | September 10, 1966 | — | 48 |
| The Robonic Stooges | September 10, 1977 | CBS | 32 |
| The Savage Dragon | September 21, 1995 | USA Network | 26 |
| The Scooby & Scrappy-Doo/Puppy Hour | September 25, 1982 | American Broadcasting Company | 13 |
| The Scooby-Doo Show | September 11, 1976 | American Broadcasting Company | 40 |
| The Secret Files of the Spy Dogs | 1998 | Fox Broadcasting Company | 22 |
| The Secret Saturdays | October 3, 2008 | Cartoon Network | 36 |
| The Secret Show | September 16, 2006 | CBBC, BBC Children's and Education | 52 |