| Top Secret | — | drama television series | — | — |
| Top Secret UFO Projects: Declassified | Netflix | documentary | 1 | 6 |
| Top Ten of Everything | — | — | — | — |
| Top Trumps | Channel 5 | — | — | 10 |
| Topsy and Tim | CBeebies | — | — | — |
| Torchwood | BBC Three, BBC Two, BBC One, Starz | thriller television series, drama television series, science fiction television series, LGBT-related television series | 4 | 41 |
| Torchwood Declassified | BBC Three, BBC Two | documentary television program | — | 27 |
| Torchy the Battery Boy | ITV | fantasy television program | 2 | 52 |
| Torn | — | drama television series | — | 3 |
| Tory! Tory! Tory! | BBC Four | documentary film | 1 | 3 |
| Total Rugby | — | sports television program | — | — |
| Total Wipeout | British Broadcasting Corporation | game show | 5 | 47 |
| Totally Boyband | — | — | — | — |
| Totally Doctor Who | BBC One | — | 2 | 25 |
| Totally Frank | Channel 4 | — | — | — |
| Totally Jodie Marsh | MTV | reality television | — | 9 |
| Totally Saturday | BBC One | — | 1 | 7 |
| Totally Top Trumps | — | game show | 1 | 20 |
| Totally Viral | U&Dave | comedy television series | — | — |
| TOTP@Play | — | — | — | — |
| Tots TV | ITV | — | 6 | 276 |
| Tottering Towers | — | — | — | — |
| Toucan 'Tecs | CITV | — | 1 | 26 |
| Touch Me, I'm Karen Taylor | BBC Three | comedy television series | 2 | 14 |
| Touching Evil | ITV | drama television series | 3 | 16 |
| Tough Boats | — | documentary film | 1 | 6 |
| Tough Guy or Chicken? | — | — | 1 | 8 |
| Tough Trains | — | documentary film | 1 | 6 |
| Tough Trucks | Travel Channel | documentary film | 1 | 6 |
| Tough Young Teachers | — | — | 1 | 6 |
| Toughest Place to be a... | BBC Two | documentary film | 4 | 15 |
| Tour de Celeb | Channel 5 | — | 1 | 3 |
| Tour de France: Unchained | Netflix | documentary television program, cycle sport | 3 | 24 |
| Tourist Trap | BBC One Wales | — | — | — |
| Towards Zero | BBC One | detective and mystery play, thriller, historical drama | 1 | 3 |
| Tower Block Dreams | BBC Three | documentary film | 1 | 3 |
| Tower Block of Commons | Channel 4 | documentary television program | 1 | 4 |
| TOWN with Nicholas Crane | BBC Two | documentary film | 2 | 8 |
| Towser | CITV | — | 1 | 26 |
| Toytown | — | — | — | — |
| Traces | Alibi | crime television series | — | — |
| Tracey Breaks the News | — | — | 2 | 7 |
| Tracey Ullman's Show | BBC One | comedy television series | 2 | 6 |
| Tracey Ullman: A Class Act | ITV | comedy film | — | — |
| Tracy Beaker Returns | CBBC | children's television series | 3 | 39 |
| Tracy Beaker Survival Files | CBBC | children's television series | 1 | 13 |
| Trade Your Way to the USA | CBBC | reality television, children's television series | 3 | 30 |
| Traffic Cops | BBC One, BBC Three | documentary film, reality television | 14 | 105 |
| Traffik | Channel 4 | drama television series | — | 6 |
| Trailblazers | — | — | — | 14 |
| Trainer | BBC One | — | 2 | 23 |
| Training Dogs the Woodhouse Way | BBC Two | — | — | 10 |
| Trainspotting Live | BBC Four | — | 1 | 3 |
| Traitor | BBC One | — | — | — |
| Traitors | Channel 4 | drama television series, thriller television series | 1 | 6 |
| Trans World Sport | Channel 4 | — | — | — |
| Transaction | ITV2 | sitcom | 1 | 6 |
| Transatlantic Sessions | — | — | — | — |
| Transformation Street | ITV | documentary television program, LGBT-related television series | 1 | 3 |
| Transmission | Channel 4 | — | 3 | — |