| The Orchestra and Its Instruments | — | documentary television program | — | — |
| The Ordeal of Richard Feverel | — | — | — | — |
| The Organization | ITV Yorkshire | — | — | 7 |
| The Original Max Talking Headroom Show | — | comedy film, talk show | — | 7 |
| The Other 'Arf | ITV | sitcom | 4 | 26 |
| The Other Bennet Sister | BBC One | historical drama | 1 | 10 |
| The Other Half | BBC One | dating game show | 4 | 31 |
| The Other One | — | — | — | — |
| The Other One | — | — | — | — |
| The Ottomans: Europe's Muslim Emperors | BBC Two | documentary film | 1 | 3 |
| The Outlaws | BBC One | — | 3 | 17 |
| The Outsider | ITV | — | 1 | 6 |
| The Owl Service | ITV | fantasy television program | 1 | 8 |
| The Pacific | HBO | drama television series, war television series, historical television series | 1 | 10 |
| The Palace | ITV1 | drama television series | 1 | 8 |
| The Pall Bearer's Revue | — | — | 1 | 5 |
| The Pallisers | BBC Two | historical drama | 1 | 26 |
| The Paradise | BBC One, British Broadcasting Corporation | drama television series | 2 | 16 |
| The Paradise Club | British Broadcasting Corporation | detective fiction | 2 | 20 |
| The Paras | BBC One | documentary film | 1 | 7 |
| The Passing Bells | BBC One | — | 1 | 5 |
| The Passion | BBC One | drama film | — | 4 |
| The Passion | — | — | — | — |
| The Pattern of Marriage | — | — | — | — |
| The Paul Daniels Magic Show | BBC One | — | 15 | 120 |
| The Paul O'Grady Show | ITV | — | 15 | 769 |
| The People of Paradise | — | nature documentary | 1 | 6 |
| The People Versus | ITV | game show | 2 | 120 |
| The People vs. Jerry Sadowitz | — | — | — | — |
| The People's Book of Records | Channel 4 | game show | 1 | 9 |
| The People's Parliament | — | — | — | — |
| The People's Quiz | BBC One | game show | 2 | 12 |
| The People's Supermarket | Channel 4 | — | 1 | 4 |
| The Perishers | BBC One | children's television series | 1 | 20 |
| The Persuaders! | ITV | crime television series, comedy television series, action television series | 1 | 24 |
| The Persuasionists | BBC Two | sitcom | 1 | 6 |
| The Peter Principle | BBC One | sitcom | 2 | 13 |
| The Peter Serafinowicz Show | BBC Two | comedy television series | 1 | 7 |
| The Pets Factor | — | — | — | 20 |
| The Phantom Raspberry Blower of Old London Town | — | comedy television series | — | — |
| The Philanthropist | NBC | action television series, drama television series, adventure television series | 1 | 8 |
| The Phoenix and the Carpet | British Broadcasting Corporation | — | 1 | 6 |
| The Pickwick Papers | — | drama television series | 1 | 12 |
| The Piglet Files | ITV | sitcom | 3 | 21 |
| The Pilot Show | — | — | — | — |
| The Pink Courtroom | PrettyLittleThing | drama television series | 4 | 16 |
| The Pinky and Perky Show | — | — | 1 | 52 |
| The Pitch | — | — | — | — |
| The Plane Makers | — | — | — | 58 |
| The Planets | BBC Two | documentary film | 1 | 8 |
| The Planets | BBC Two | documentary film | — | 5 |
| The Planners | BBC Two | documentary film | 1 | 8 |
| The Planners Are Coming | BBC One | documentary film | 1 | 8 |
| The Playlist | — | — | 3 | 36 |
| The Pledge | — | — | — | — |
| The Politician's Husband | BBC Two | — | 1 | 3 |
| The Politician's Wife | Channel 4 | drama television series | 1 | 3 |
| The Pop Years | — | documentary film | 1 | 20 |
| The Power | Amazon Prime Video | science fiction, dystopian fiction, thriller | 1 | 9 |
| The Power and the Glory | BBC Two | — | 1 | 13 |