| Gordon Ramsay: Cookalong Live | Channel 4 | cooking show | 2 | 8 |
| Gordon the Garden Gnome | CBeebies | — | 1 | 44 |
| Gordon's Great Escape | Channel 4 | cooking show | 2 | 7 |
| Gormenghast | BBC Two | — | 1 | 4 |
| Got to Dance | Sky One | — | 1 | 8 |
| Got What It Takes? | CBBC | talent show | 4 | 40 |
| Gower's Cricket Monthly | — | — | — | — |
| GPs: Behind Closed Doors | Channel 5 | factual television program | 7 | — |
| Grace | — | — | — | — |
| Grace & Favour | BBC One | sitcom, LGBT-related television series | 2 | 12 |
| Grady | — | — | — | — |
| Grafters | ITV | — | 2 | 16 |
| Graham Norton's Bigger Picture | BBC One | comedy television series | 3 | 24 |
| Graham's Gang | — | — | 2 | 10 |
| Grand Designs | Channel 4 | documentary television program | 20 | 160 |
| Grand Prix | BBC One | — | — | — |
| Grand Slam | — | game show | — | — |
| Grandma's House | BBC Two | sitcom, LGBT-related television series | 2 | 12 |
| Grandpa in My Pocket | CBeebies | comedy television series | 5 | 120 |
| Grandstand | BBC One | — | — | 3,500 |
| Grange Hill | BBC One | LGBT-related television series | 31 | 601 |
| Granite Harbour | — | — | — | — |
| Grantchester | ITV | drama television series | 11 | 75 |
| Grass | BBC Three | sitcom | 1 | 8 |
| Grasshopper Island | — | — | — | 12 |
| Gravelhanger | — | — | — | — |
| Grayson Perry: All Man | — | — | — | — |
| Grease: The School Musical | — | reality television | — | — |
| Great Asian Railway Journeys | BBC Two | documentary | — | 20 |
| Great Australian Railway Journeys | — | — | — | — |
| Great Barrier Reef | — | nature documentary | — | 3 |
| Great Barrier Reef | BBC One | nature documentary | 1 | 3 |
| Great British Garden Revival | — | documentary television program | 1 | 10 |
| Great British Menu | BBC Two | cooking show, talent show | 11 | 499 |
| Great British Train Journeys From Above | — | documentary television program | — | — |
| Great Canadian Railway Journeys | BBC Two | — | — | — |
| Great Canal Journeys | — | — | — | — |
| Great Coastal Railway Journeys | — | — | — | — |
| Great Continental Railway Journeys | BBC Two | documentary film | 5 | 23 |
| Great Crimes and Trials | BBC Two | documentary film, documentary television program | 3 | 78 |
| Great Expectations | BBC One | period drama film | — | 12 |
| Great Expectations | — | — | — | — |
| Great Indian Railway Journeys | BBC Two | documentary | 1 | 4 |
| Great Night Out | — | — | 1 | 6 |
| Great Ormond Street | BBC Two | documentary film | 2 | 9 |
| Great Railway Journeys | BBC Two | documentary film | — | — |
| Great Railway Journeys of the World | BBC Two | documentary film | — | — |
| Great SAS Missions | — | documentary television program | — | — |
| Great Scott, It's Maynard | — | — | — | — |
| Greatest Events of WWII in Colour | — | — | — | — |
| Greece: The Hidden War | — | — | — | — |
| Green Balloon Club | CBeebies | — | 2 | 63 |
| Green Wing | Channel 4 | sitcom | 2 | 17 |
| Grenfell | — | — | — | 3 |
| Grey Mates | — | sitcom | 2 | 13 |
| Grim Tales | ITV, Katholieke Radio Omroep | fantasy television program | 2 | 22 |
| Grime & Punishment: Dirty Britain | Channel 5 | documentary television program | 2 | 17 |
| Grimefighters | — | documentary television program | 4 | 51 |
| Groove High | Disney Channel | comedy television series, teen drama television, teen sitcom, sitcom, musical film | 1 | 26 |
| Gross Up | — | reality television | 1 | 6 |