| Guess This House | — | — | 1 | 25 |
| Guessable | Q1114052 | panel game | 2 | 20 |
| Guesstimation | BBC One | — | 1 | 8 |
| Guest Night | — | — | — | — |
| Guilty! | — | — | — | — |
| Guinness World Records Smashed | — | — | 1 | 12 |
| Guitar Star | — | — | 1 | 9 |
| Gunpowder | BBC One, British Broadcasting Corporation | historical drama | 1 | 3 |
| Gwaith/Cartref | S4C | — | 6 | 60 |
| Gwlad y Gân | — | — | — | — |
| Gypsy Girl | ITV | — | 1 | 7 |
| H.M. Tennent Globe Theatre | — | — | — | — |
| Ha Ha Hairies | — | — | — | 52 |
| Hacio | — | children's television series | — | — |
| Hacker Time | BBC Children's and Education | — | 6 | 56 |
| Hacker's Olympic Rundown | BBC Children's and Education | — | 1 | 11 |
| Hadleigh | ITV | drama television series | 4 | 52 |
| Haggard | — | sitcom | 2 | 14 |
| Hainan Adventure with Nigel Marven | Eden | — | — | — |
| Hair | BBC Three | reality television | 2 | 14 |
| Hairspray: The School Musical | — | reality television | 1 | 8 |
| Hairy Bikers: Route 66 | — | — | — | — |
| Hala Show | MBC 4, MBC Shahid, MBC Max, MBC Persia | reality show, reality television, docudrama, documentary film, drama film | — | — |
| Half Bad: The Bastard Son & The Devil Himself | Netflix | fantasy television series, drama television series | 1 | 8 |
| Half Man | HBO, BBC One | drama fiction | 1 | 6 |
| Half Moon Investigations | — | — | 1 | 13 |
| Hallo aus Berlin | — | — | — | 10 |
| Hamburg Days | BBC One | biographical film, drama film | 1 | 6 |
| Hamish Macbeth | BBC Scotland | — | 3 | 20 |
| Hammer House of Horror | ITV | drama television series, horror television series, thriller television series, anthology series | 1 | 13 |
| Hammer House of Mystery and Suspense | ITV | science fiction television series | 1 | 13 |
| Hancock | — | — | — | — |
| Hancock's Half Hour | BBC Light Programme, BBC One | comedy television series | — | — |
| Handmade: Britain's Best Woodworker | Channel 4 | reality television series | — | 6 |
| Hang Ups | Channel 4 | teen sitcom | 1 | 6 |
| Hangar 17 | BBC One | — | — | — |
| Hank Zipzer | CBBC | sitcom | 3 | 39 |
| Hapless | — | — | — | — |
| Happening for Lulu | — | — | — | — |
| Happily Ever After | — | — | — | — |
| Happiness | BBC Two | sitcom | 2 | 12 |
| Happy and Glorious | — | — | — | — |
| Happy Ever After | — | comedy | 14 | 2 |
| Happy Ever After | British Broadcasting Corporation | sitcom | 5 | 41 |
| Happy Families | BBC One | farce | 1 | 6 |
| Happy Holidays | — | — | — | — |
| Happy Ness: Secret of the Loch | TF1 | — | 1 | 13 |
| Happy Valley | BBC One | crime television series, drama television series | 3 | 18 |
| Hard Cases | — | — | — | — |
| Hard Cell | Netflix | — | 1 | 6 |
| Hard Spell | BBC One | — | — | — |
| Hard Spell Abbey | — | — | — | 5 |
| Hard Sun | BBC One | science fiction television series | 1 | 6 |
| Hard Times | — | drama television series | 1 | 4 |
| HARDtalk | BBC News, BBC News | talk show | — | — |
| Hardware | ITV | sitcom | 2 | 12 |
| Hardwicke House | — | sitcom | 1 | 2 |
| Hark at Barker | — | sitcom | 2 | 15 |
| Harley Street | — | — | 1 | 6 |
| Harlots | Hulu, ITV Encore | drama film | 3 | 24 |