| Year | Programme | Other notes |
| 2001–2005 | What Not to Wear | Herself |
| 2002 | The Kumars at No. 42 | Herself, interview |
| 2003 | What Not to Wear on the Red Carpet | Herself |
| V Graham Norton | Herself, interview |
| Parkinson | Herself, interview |
| 2004 | The Terry and Gaby Show | Herself, interview |
| Friday Night with Jonathan Ross | Herself, interview |
| Children in Need | Herself |
| Top Gear | Herself, interview and racing |
| This Morning | Herself, interview |
| 2005 | Comic Relief: Red Nose Night Live 05 | Herself |
| Parkinson | Herself, interview |
| This Morning | Herself, interview |
| Doctor Who | Episode "Bad Wolf", voice of Trine-e |
| 2006 | Parkinson | Herself, interview |
| This Morning | Herself, interview |
| Sport Relief | Herself |
| Ant & Dec's Saturday Night Takeaway | Herself, interview |
| The Sharon Osbourne Show | Herself, interview |
| The View | Herself, interview |
| The Today Show | Herself |
| 2006–2007 | Trinny & Susannah Undress... | Herself |
| 2007 | Richard & Judy | Herself, interview |
| Comic Relief Does The Apprentice | Herself, contestant |
| Friday Night with Jonathan Ross | Herself, interview |
| GMTV; LK Today | Herself, interview |
| Good Morning America | Herself |
| This Morning | Herself |
| 2009 | Making Over America | Herself |
| Would I lie To You? | Herself |
| 7 days on the breadline | Herself |
| 2010 | Trinny & Susannah: Missie Vlaanderen (channel Vitaya/Belgium) | Herself |
| 2011 | My Life in Books BBC2 | Herself, Interview |
| Trinny & Susannah ubierają Polskę (channel TVN Style Poland) | Herself |
| 2011–2012 | Trinny & Susannah: Missie Holland (channel RTL NL) | Herself |
| 2011–2014 | Trinny & Susannah: Stylar om Sverige (channel TV4 Plus Sweden) | Herself |
| 2011–2015 | "Trinny & Susannah: Making Over Israel" (Channel 10, Israel) | Herself |
| Trinny & Susannah: Oppdrag Norge (channel FEM) | Herself |
| 2013 | Trinny & Susannah's Makeover Mission India(TLC) | Herself |
| 2015 | The Real Housewives of New York City | Herself |
| 2016 | ITV This Morning | Herself |
| 2019 | RTE Ireland | Herself |
| 2020 | Sky News | Herself |
| The Six O'Clock Show | Herself |
| Sunrise | Herself |
| 2021 | BBC News | Herself |
| CBNC | Herself |
| BBC Breakfast | Herself |
| The Six O'Clock Show | Herself |