| Funny Business | — | — | — |
| Galapagos 3D | Sky 3D | 1 | 3 |
| Genius of Britain | — | 1 | 5 |
| George Clarke's Amazing Spaces | Channel 4 | — | 16 |
| Girls Aloud: Off the Record | E4 | — | 6 |
| Globe Trekker | Channel 4 | 17 | 218 |
| Gnostics | Channel 4 | 1 | 4 |
| Gogglebox | Channel 4 | 4 | 41 |
| Grand Designs | Channel 4 | 20 | 160 |
| Great British Garden Revival | — | 1 | 10 |
| Great British Train Journeys From Above | — | — | — |
| Great Crimes and Trials | BBC Two | 3 | 78 |
| Great SAS Missions | — | — | — |
| Grime & Punishment: Dirty Britain | Channel 5 | 2 | 17 |
| Grimefighters | — | 4 | 51 |
| Helicopter ER | — | — | — |
| Heroes Unmasked | BBC Two | 3 | 46 |
| Highland Emergency | Channel 5 | 3 | — |
| History Cold Case | BBC Two | 2 | 8 |
| Hitler's Bodyguard | — | 1 | 13 |
| Horizon | BBC Two | 52 | 1,200 |
| Horror in the East | — | — | — |
| House Auction | — | — | — |
| How Do They Do It? | Discovery Channel | — | — |
| How the Other Half Live | — | — | — |
| How to Grow a Planet | — | 1 | 3 |
| How to Start Your Own Country | BBC Two | 1 | 6 |
| Hurricane Man | U&Dave | — | — |
| I Am a Killer | Crime & Investigation Network | 2 | 20 |
| I Didn't Know That | National Geographic | 3 | 31 |
| Imagine | BBC One | 35 | 211 |
| In Search of the Trojan War | BBC Two | 1 | 6 |
| In the Footsteps of Alexander the Great | — | 1 | 4 |
| Industrial Revelations | Discovery Channel | 5 | 46 |
| Infamous Assassinations | British Broadcasting Corporation | 1 | 20 |
| Inside Gatwick | — | 1 | 8 |
| Inside Nature's Giants | — | 4 | 18 |
| Inside the Freemasons | — | — | — |
| Inside the Tower of London | — | 7 | — |
| Inside the World's Toughest Prisons | Channel 5, MediaCorp Channel 5 | 5 | 16 |
| Islands of Britain | ITV | 1 | 3 |
| James Nesbitt's Ireland | — | 1 | 8 |
| Jamie's School Dinners | Channel 4 | 1 | 4 |
| Jean-Claude Van Damme: Behind Closed Doors | ITV4 | 1 | 8 |
| Joe Lycett vs the Oil Giant | Channel 4 | — | — |
| Junior Doctors: Your Life in Their Hands | BBC Three | 3 | 22 |
| Justin Lee Collins: Turning Japanese | — | — | — |
| Kevin McCloud's Man Made Home | Channel 4 | — | 8 |
| Killer Couples | — | — | — |
| Killers Behind Bars: The Untold Story | — | — | — |
| Kingdom of Plants 3D | Sky 3D | 1 | 3 |
| Knife Edge: Chasing Michelin Stars | — | — | — |
| Last Voices of World War 1 | — | — | — |
| Lemur Street | Animal Planet | 1 | 20 |
| Little England | — | 2 | 20 |
| Long Lost Family | ITV1 | — | 49 |
| Long Shadow | BBC Two | — | — |
| Louis Theroux Interviews | — | — | — |
| Louis Theroux's Weird Weekends | BBC Two | 3 | 17 |
| Louis Theroux: Altered States | — | — | — |