| The Level | — | 1 | 6 |
| The Liars | — | 1 | 13 |
| The Lion, the Witch and the Wardrobe | fantasy television series | 1 | 10 |
| The Little Green Man | — | 1 | 13 |
| The Long Call | — | — | 4 |
| The Losers | sitcom | 1 | 6 |
| The Lost Honour of Christopher Jefferies | drama film | — | — |
| The Lovers | sitcom | 2 | 13 |
| The Magic House | — | — | — |
| The Main Chance | legal drama | 4 | 45 |
| The Mallens | drama television series | 2 | 13 |
| The Martin Lewis Money Show | — | 6 | — |
| The Marty Feldman Comedy Machine | comedy television series | 1 | 14 |
| The Masked Singer | entertainment television program | — | — |
| The Michael Ball Show | — | 1 | 30 |
| The Mind of Mr. J.G. Reeder | — | 2 | 16 |
| The Misfit | sitcom | 2 | 13 |
| The Moment of Truth | game show | 4 | 53 |
| The Muppet Show | comedy television series, puppetry, sketch comedy, variety show | 5 | 120 |
| The Nearly Man | — | 1 | 8 |
| The New Adventures of Black Beauty | drama television series | — | — |
| The New Avengers | espionage television series | 2 | 26 |
| The New Statesman | sitcom | 4 | 26 |
| The New Worst Witch | fantasy television series | 2 | 26 |
| The Nightly Show | — | 1 | 39 |
| The Noise | — | 1 | 17 |
| The Other 'Arf | sitcom | 4 | 26 |
| The Outsider | — | 1 | 6 |
| The Owl Service | fantasy television program | 1 | 8 |
| The Paul O'Grady Show | — | 15 | 769 |
| The People Versus | game show | 2 | 120 |
| The Persuaders! | crime television series, comedy television series, action television series | 1 | 24 |
| The Piglet Files | sitcom | 3 | 21 |
| The Practice | soap opera | — | 47 |
| The Premiership | — | — | — |
| The Price Is Right | game show, television game show | — | — |
| The Prisoner | science fiction television series, espionage television series, mystery television series, thriller television series, surrealist television series | 1 | 17 |
| The Professionals | crime television series, action television series | 5 | 57 |
| The Protectors | crime television series, action television series, adventure television series | 2 | 52 |
| The Pyramid Game | game show | 3 | 80 |
| The Rat Catchers | — | 2 | 25 |
| The Ratties | — | 1 | 26 |
| The Rivals of Sherlock Holmes | anthology series, Sherlock Holmes television program, detective television series | 2 | 26 |
| The Roxy | — | 1 | — |
| The Ruth Rendell Mysteries | drama television series | 11 | 84 |
| The Saint | crime television series, espionage television series | 6 | 118 |
| The Sandbaggers | action television series | 3 | 20 |
| The Saturday Starship | — | — | — |
| The Second Coming | drama television series, black comedy | 1 | 2 |
| The Secret Diary of Adrian Mole | comedy television series, youth series | 2 | 12 |
| The Sentimental Agent | drama television series | 1 | 13 |
| The Singapore Grip | — | 1 | 6 |
| The Singing Kettle News | — | 4 | — |
| The Sitcom Trials | — | 1 | 8 |
| The Sketch Show | — | 3 | 16 |
| The Sky's the Limit | game show | — | — |
| The Slow Norris | fantasy television series | — | 60 |
| The South Bank Show | documentary film | 32 | 736 |
| The Spooks of Bottle Bay | — | 3 | 39 |
| The Squad | — | 1 | 12 |