| 2023 | America's Got Talent: All-StarsSeries | Self - Judge | 64 |
| 2022 | The Jennifer Hudson ShowSeries | Self | 63 |
| 2020 | The National Television Awards Celebrate 25 YearsMovie | Self | 61 |
| 2020 | Men in BrownMovie | Self | 61 |
| 2019 | The Kelly Clarkson ShowSeries | Self | 60 |
| 2019 | The Show Must Go On: The Queen + Adam Lambert StoryMovie | Self - Talent Scout | 60 |
| 2019 | America's Got Talent: The ChampionsSeries | — | 60 |
| 2019 | The X Factor CelebritySeries | Self - Judge | 60 |
| 2018 | Darci Lynne: My Hometown ChristmasMovie | — | 59 |
| 2017 | Clive Davis: The Soundtrack of Our LivesMovie | Self | 58 |
| 2017 | Who Shot Simon Cowell?Movie | Simon Cowell | 58 |
| 2017 | Britain's Greatest HoaxerMovie | Self | 58 |
| 2016 | WIRED's Autocomplete InterviewsSeries | Self - Guest | 57 |
| 2016 | Popstar: Never Stop Never StoppingMovie | Simon Cowell | 57 |
| 2015 | The Late Late Show with James CordenSeries | Self | 56 |
| 2015 | 20 Moments That Rocked Talent ShowsMovie | Self (archive footage) | 56 |
| 2014 | The Tonight Show Starring Jimmy FallonSeries | Self | 55 |
| 2014 | Late Night with Seth MeyersSeries | Self | 55 |
| 2013 | One Direction: This Is UsMovie | Self | 54 |
| 2011 | One Direction: A Year in the MakingMovie | Self (archive footage) | 52 |
| 2011 | The X FactorSeries | Self - Judge | 52 |
| 2010 | Harry Hill's TV Burp Gold 3Movie | Self (archive footage) | 51 |
| 2009 | Family Guy Presents: Stewie Kills Lois and Lois Kills StewieMovie | Simon Cowell (voice) | 50 |
| 2009 | Square Roots: The Story of SpongeBob SquarePantsMovie | Self (archive footage) | 50 |
| 2009 | Kate Garraway's Life StoriesSeries | — | 50 |
| 2007 | Britain's Got More TalentSeries | Self | 48 |
| 2007 | Britain's Got TalentSeries | Self - Judge | 48 |
| 2006 | America's Got TalentSeries | Self - Judge | 47 |
| 2006 | The Story of Light EntertainmentSeries | Self | 47 |
| 2005 | The Reichen ShowSeries | Self | 46 |
| 2005 | American Idol: The Best of Seasons 1-4Movie | Self - Judge (archive footage) | 46 |
| 2005 | American Idol: The Worst of Seasons 1-4Movie | Self - Judge | 46 |
| 2004 | On Air with Ryan SeacrestSeries | Self | 45 |
| 2004 | The Celebrity ApprenticeSeries | — | 45 |
| 2004 | The Paul O'Grady ShowSeries | — | 45 |
| 2004 | Far Far Away IdolMovie | Simon Cowell (voice) | 45 |
| 2004 | The X FactorSeries | Self - Judge | 45 |
| 2003 | Scary Movie 3Movie | Simon Cowell | 44 |
| 2003 | Jimmy Kimmel Live!Series | Self | 44 |
| 2003 | The Ellen DeGeneres ShowSeries | Self | 44 |
| 2003 | Punk'dSeries | Self | 44 |
| 2002 | American IdolSeries | Self - Judge | 43 |
| 2002 | American Idol: The Search For A SuperstarMovie | Judge | 43 |
| 2002 | Ant & Dec's Saturday Night TakeawaySeries | Self | 43 |
| 2002 | Top GearSeries | Self | 43 |
| 2001 | Pop IdolSeries | Self - Judge | 42 |
| 2000 | When Louis Met...Series | Self | 41 |
| 1999 | Family GuySeries | Simon Cowell (voice) | 40 |
| 1999 | Loose WomenSeries | Self (voice) | 40 |
| 1998 | So Graham NortonSeries | Self | 39 |
| 1997 | The ViewSeries | Self | 38 |
| 1995 | The Frank Skinner ShowSeries | Self | 36 |
| 1995 | MADtvSeries | Self | 36 |
| 1993 | Late Show with David LettermanSeries | Self - Guest | 34 |
| 1993 | Late Night with Conan O'BrienSeries | Self - Guest | 34 |
| 1992 | The Tonight Show with Jay LenoSeries | Self | 33 |
| 1989 | The SimpsonsSeries | Henry (voice) | 30 |
| 1988 | LIVE with Kelly and MarkSeries | Self - Guest | 29 |
| 1988 | This MorningSeries | Self | 29 |
| 1981 | Entertainment TonightSeries | Self | 22 |
| 1975 | Saturday Night LiveSeries | Self - Cameo (uncredited) | 16 |
