| To Me... To You... | BBC One | children's television series | 3 | 41 |
| To Serve Them All My Days | BBC One | drama television series | — | 13 |
| To the Manor Born | BBC One | sitcom | 3 | 22 |
| Toast of London | Channel 4 | sitcom | 4 | 25 |
| Today | Thames Television | magazine format program | — | — |
| Today at Wimbledon | — | — | — | — |
| Today with Des and Mel | ITV | talk show | — | — |
| Today's the Day | BBC Two | game show | — | 760 |
| Together | ITV | — | 2 | 53 |
| Together | BBC Three | — | 1 | 6 |
| Together Again | — | — | — | — |
| Tom Brown's Schooldays | BBC One | — | — | 5 |
| Tom Daley Goes Global | ITV2 | — | 1 | 6 |
| Tom Jones | — | — | — | — |
| Tom Jones: The Right Time | ITV Central | — | — | 6 |
| Tom Tom | — | — | — | — |
| Tom, Dick and Harriet | — | sitcom | 2 | 12 |
| Tomorrow's World | BBC One | — | — | 1,398 |
| Tonight | ITV1 | — | — | — |
| Tonight | — | — | — | — |
| Tonight's the Night | BBC One | talk show | 3 | 22 |
| Tonightly | Channel 4 | — | 1 | 16 |
| Tony Bennett at the Talk of the Town | ITV | — | 1 | 13 |
| Tony Robinson's Crime and Punishment | Channel 4 | documentary film | 1 | 4 |
| Tony Robinson: Coast to Coast | — | — | — | 6 |
| Too Close | — | drama television series, thriller television series | — | 3 |
| Too Good to Be True | — | — | — | — |
| Too Good to Be True | — | — | — | — |
| Too Many Cooks | ITV | cooking show | — | — |
| Too Much | Netflix | romantic comedy | 1 | 10 |
| Too Much TV | BBC Two | — | 1 | 25 |
| Tool Academy | E4 | reality television | 3 | 24 |
| Toonatics | — | — | — | — |
| Toonattik | ITV | — | — | — |
| Toot the Tiny Tugboat | — | — | 1 | 52 |
| Top Boy | Channel 4 | drama television series | 5 | 32 |
| Top Buzzer | MTV | sitcom | 1 | 10 |
| Top C's and Tiaras | — | — | — | — |
| Top Class | BBC Children's and Education | game show | — | 34 |
| Top Coppers | BBC iPlayer | — | 1 | 6 |
| Top Dog Model | ITV2 | — | 1 | 6 |
| Top Gear | British Broadcasting Corporation, BBC Two, BBC One | automotive television show, entertainment television program, factual television program | 32 | 235 |
| Top Gear | BBC Two | automotive television show | 45 | 515 |
| Top Gear Motorsport | BBC Two | — | — | 94 |
| Top Hat Rendezvous | — | — | — | — |
| Top of the Form | — | panel game | — | — |
| Top of the Lake | BBC Two | drama fiction, crime film | 2 | 14 |
| Top of the Pops 2 | BBC Two | — | — | — |
| Top of the Pops Reloaded | BBC Two | children's television series | — | 28 |
| 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 Wipeout | British Broadcasting Corporation | game show | 5 | 47 |