| Oscar | — | — | 1 | 3 |
| Oscar Charlie | — | children's television series | — | — |
| Other People's Children | BBC One | drama television series | 1 | 4 |
| Our Crime | — | documentary film | — | — |
| Our Friends in the North | BBC Two | drama television series | — | 9 |
| Our Girl | BBC One | drama television series | 4 | 28 |
| Our House | ITV1 | sitcom | 2 | 39 |
| Our Man at St. Mark's | — | — | — | — |
| Our Man in... | Channel 4 | documentary television program | 1 | 3 |
| Our Miss Pemberton | — | — | — | — |
| Our Mutual Friend | BBC Two | — | — | 4 |
| Our Mutual Friend | BBC One | — | 1 | 12 |
| Our Mutual Friend | British Broadcasting Corporation | — | 1 | 7 |
| Our Oceans | — | — | — | — |
| Our Planet | Netflix | documentary film | 2 | 12 |
| Our School | — | — | — | — |
| Our World War | BBC Three | docudrama | 1 | 3 |
| Our Zoo | BBC One | drama | 1 | 6 |
| Out Of Bounds | BBC One | drama television series | 1 | 6 |
| Out of Her Mind | BBC Two | — | — | — |
| Out of Hours | — | — | — | — |
| Out of Sight | ITV | comedy television series, children's television series | 3 | 27 |
| Out of Step | — | — | — | — |
| Out of the Blue | — | crime television series | 2 | 12 |
| Out of the Unknown | BBC Two | science fiction television series, fantasy television series, anthology series | 4 | 49 |
| Out of This World | ABC Television Limited | science fiction television series, anthology series | 1 | 13 |
| Out of Tune | BBC Children's and Education | comedy television series | 3 | 40 |
| Outlander | Starz | fantasy television series, drama television series, adventure television series, historical television series, romance television series | 8 | 101 |
| Outlander: Blood of My Blood | Starz | historical drama, romantic drama, time travel, fantasy television series, drama television series, romance television series | 2 | 12 |
| Outlaws | BBC Three | — | 1 | 12 |
| Outnumbered | BBC One | sitcom | 5 | 35 |
| Outrageous | — | drama | — | 6 |
| Outrageous Acts of Science | — | — | 7 | 87 |
| Outside Edge | — | — | — | — |
| Outside Man | — | documentary television program | — | — |
| Outsiders | — | — | — | — |
| Outtake TV | BBC One | comedy television series | — | — |
| OutTHERE | — | — | — | — |
| Over to William | — | — | — | — |
| Overseas Press Club - Exclusive! | — | — | — | 13 |
| Owen, M.D. | — | — | 2 | 61 |
| Oxbridge Blues | BBC Two | — | — | 7 |
| Oxford Road Show | BBC Two | — | 5 | 63 |
| Oz and Hugh Raise the Bar | — | documentary film | 1 | 4 |
| Oz and James Drink to Britain | BBC Two | documentary film | 1 | 8 |
| P.O.W. | — | — | 1 | 6 |
| Pablo | CBeebies | — | 2 | 105 |
| Pacific Abyss | — | documentary film | — | — |
| Packet of Three | Channel 4 | — | 2 | 16 |
| Paddington Green | — | reality television | 6 | 53 |
| Paddington Station 24/7 | — | documentary television program | — | — |
| Paddy's Show and Telly | — | game show | — | 2 |
| Paddy's TV Guide | Channel 4 | comedy television series | 1 | 8 |
| Paging You | BBC One | comedy television series | — | — |
| Pajanimals | Nick Jr. | comedy television series | 2 | 52 |
| Pandora's Box | BBC Two | documentary film, documentary television program | 1 | 6 |
| Panorama | BBC One | documentary film, documentary television program | — | 1,233 |
| Paperplay | — | — | — | 182 |
| Pappano's Essential Ring Cycle | — | documentary film | — | — |
| Parade's End | BBC Two | drama television series | 1 | 5 |