| Immortal Egypt | — | — | 1 | 4 |
| Impact | — | — | 1 | 2 |
| Impact | BBC News | — | — | — |
| Impossible | BBC One | game show | 8 | 225 |
| Impractical Jokers UK | — | comedy television series | 3 | 21 |
| In a Land of Plenty | BBC Two | — | 1 | 10 |
| In and Out of the Kitchen | — | comedy television series | 1 | 3 |
| In Bed with Medinner | — | — | — | — |
| In Concert | British Broadcasting Corporation | — | 9 | 113 |
| In Confidence | — | — | 3 | — |
| In Deep | BBC One | — | 3 | 22 |
| In Defence | ITV | crime television series | 1 | 4 |
| In Flight | Channel 4 | — | — | 6 |
| In Loving Memory | ITV | sitcom | 5 | 37 |
| In My Skin | British Broadcasting Corporation | comedy television series, black comedy television series, drama television series | 2 | 10 |
| In Plain Sight | ITV | drama television series | 1 | 3 |
| In Search of the Dark Ages | — | — | 2 | 8 |
| In Search of the Trojan War | BBC Two | documentary television program | 1 | 6 |
| In Sickness and in Health | BBC One | sitcom | 6 | 47 |
| In Suspicious Circumstances | — | — | — | — |
| In the Club | BBC One | drama film | 2 | 8 |
| In the Dark | BBC One | crime film | 1 | 4 |
| In the Flesh | BBC Three | drama television series, fantasy television series, LGBT-related television series | 2 | 9 |
| In the Footsteps of Alexander the Great | — | documentary television program | 1 | 4 |
| In the Grid | Channel 5 | game show | 1 | 70 |
| In the Long Run | — | — | — | — |
| In the Looking Glass | BBC Two | comedy television series | — | 6 |
| In the Night Garden | CBeebies, Discovery Family | children's television series | 2 | 20 |
| In the Red | BBC Two | — | 1 | 3 |
| In with the Flynns | BBC One | sitcom | 2 | 12 |
| Incognito | BBC One | — | — | — |
| India with Sanjeev Bhaskar | BBC Two | documentary film | 1 | 4 |
| India: Nature's Wonderland | — | — | — | — |
| Indian School | — | documentary film | — | 10 |
| Indian Summers | Channel 4 | drama television series | 2 | 20 |
| Industry | HBO, BBC Two | drama television series | 4 | 32 |
| Infamous Assassinations | British Broadcasting Corporation | documentary television program | 1 | 20 |
| Informer | BBC One, British Broadcasting Corporation | crime film, thriller film | 1 | 6 |
| Ingenious Animals | — | — | 1 | 4 |
| Inheritance | ITV | — | 1 | 10 |
| Injustice | ITV | drama television series | 1 | 5 |
| Innocents | — | — | — | — |
| Insert Name Here | BBC Two | panel game | 2 | 6 |
| Inside Claridge's | — | documentary film | 1 | 3 |
| Inside Europe: Ten Years of Turmoil | — | documentary | — | — |
| Inside Gatwick | — | documentary television program | 1 | 8 |
| Inside KFC | BBC One | — | 1 | 3 |
| Inside Life | CBBC | — | — | 10 |
| Inside Men | BBC One | crime television series | 1 | 4 |
| Inside Nature's Giants | — | documentary television program | 4 | 18 |
| Inside No. 9 | BBC Two | comedy drama, anthology series, comedy television series | 8 | 49 |
| Inside Our Minds | — | — | — | — |
| Inside Out | BBC One | documentary film | — | — |
| Inside Out | — | children's television series | — | — |
| Inside Sport | BBC One | — | 4 | — |
| Inside the Freemasons | — | documentary television program | — | — |
| Inside the Gangsters Code | Discovery Channel | crime film | 1 | 5 |
| Inside the Mind of a Serial Killer | — | — | — | — |
| Inside the Tower of London | — | documentary television program | 7 | — |
| Inside the World's Toughest Prisons | Channel 5, MediaCorp Channel 5 | documentary television program | 5 | 16 |