| The Housing Enforcers | — | — | — |
| The Human Body | documentary film | — | 7 |
| The Hunt | — | 1 | 7 |
| The Imaginatively Titled Punt & Dennis Show | comedy television series | 2 | 12 |
| The Indian Doctor | historical drama | 3 | 15 |
| The Innocence Project | legal drama | 1 | 8 |
| The Inspector Alleyn Mysteries | detective fiction | 2 | 9 |
| The Inspector Lynley Mysteries | drama television series, crime television series | 6 | 23 |
| The Interceptor | drama film | 1 | 8 |
| The Invisible Man | science fiction television series, drama television series | 1 | 6 |
| The Jetty | — | — | 4 |
| The John Bishop Show | comedy television program | 1 | 8 |
| The Joy of Text | documentary film | — | — |
| The Kennedys | — | 1 | 6 |
| The Kids Are All Right | game show | 1 | 8 |
| The Lakes | — | 2 | 14 |
| The Last Enemy | drama fiction | 1 | 5 |
| The Last Post | drama television series | 1 | 6 |
| The Late, Late Breakfast Show | game show | 5 | 77 |
| The Laughter Show | comedy television program | 8 | 51 |
| The Legend of King Arthur | — | 1 | 8 |
| The Legend of Robin Hood | drama television series | — | 6 |
| The Les Dawson Show | variety show | — | 34 |
| The Life and Times of David Lloyd George | biographical film, drama television series, historical television series | — | 9 |
| The Life of Birds | nature documentary, documentary film | — | 10 |
| The Life of Mammals | nature documentary, documentary film | — | 10 |
| The Link | game show | 2 | 65 |
| The Lion, the Witch and the Wardrobe | fantasy television series | — | 6 |
| The Listeners | psychological thriller | 1 | 4 |
| The Little Drummer Girl | drama television series, espionage television series | 1 | 6 |
| The Liver Birds | sitcom | 10 | 86 |
| The Living and the Dead | drama television series, thriller television series, horror television series | 1 | 6 |
| The Living Planet | nature documentary | — | 12 |
| The Lost World of Mitchell & Kenyon | documentary film | — | 3 |
| The Magician's House | — | 2 | 12 |
| The Magicians | — | 2 | 11 |
| The Making of Me | — | 1 | 3 |
| The Mallorca Files | drama | 2 | 16 |
| The Mask of Janus | — | 1 | 11 |
| The Matt Lucas Awards | comedy television series | 2 | 16 |
| The Michael McIntyre Chat Show | comedy television series | 1 | 7 |
| The Missing | drama television series | 2 | 16 |
| The Moment of Proof | — | — | — |
| The Moon Stallion | adventure television series, children's television series | — | 6 |
| The Movie Game | — | 8 | — |
| The Mrs Bradley Mysteries | drama television series | 1 | 5 |
| The Murder Game | reality television | 1 | 9 |
| The Musketeers | drama television series, swashbuckler film | 3 | 30 |
| The National Lottery: In It to Win It | game show | 18 | 172 |
| The New Statesman | sitcom | 4 | 26 |
| The Newcomers | soap opera, drama television series | — | 430 |
| The Nigel Barton Plays | drama | — | — |
| The Night Manager | drama television series, crime television series, espionage television series | 2 | 12 |
| The No. 1 Ladies' Detective Agency | detective television series | 1 | 7 |
| The Office | sitcom, mockumentary, pseudo-documentary | 2 | 14 |
| The Old Guys | sitcom | 2 | 12 |
| The Omega Factor | science fiction television series, drama television series, thriller television series, horror television series | — | 10 |
| The Omid Djalili Show | comedy television series | 2 | 12 |
| The One and Only | reality television | 1 | 6 |
| The One Show | documentary film | — | — |