| 100 Greatest | Channel 4 | — | 60 |
| 1066 The Battle for Middle Earth | — | 1 | 2 |
| 1066: A Year to Conquer England | — | — | 3 |
| 24 Hours | BBC One | — | — |
| 24 Hours in A&E | Channel 4 | 12 | 312 |
| 24 Hours in Police Custody | Channel 4 | 4 | 20 |
| 999: What's Your Emergency? | Channel 4 | 4 | 16 |
| A Girl's Guide to 21st Century Sex | Channel 5 | 1 | 8 |
| A History of Britain | BBC One, British Broadcasting Corporation | 3 | 15 |
| A History of Horror with Mark Gatiss | BBC Four | 1 | 3 |
| A History of Scotland | BBC One | 2 | 10 |
| Accused: The Fake Grooming Scandal | Channel 4 | — | — |
| AI Confidential with Hannah Fry | BBC Two | — | 3 |
| Al Murray’s Road to Berlin | Discovery Channel | 1 | 10 |
| Alexander: The Making of a God | Netflix | 1 | 6 |
| Alien Empire | BBC One | — | 6 |
| Alien Worlds | Netflix | 1 | 4 |
| All You Need Is Love: The Story of Popular Music | — | 1 | 17 |
| Alternative Christmas message | Channel 4 | — | — |
| Amanda & Alan's Italian Job | — | — | — |
| Amazing Adventures of a Nobody | — | — | — |
| Amazon | BBC Two | 1 | 6 |
| Ancient Egyptians | — | 1 | 4 |
| Andy McNab's Tour of Duty | ITV4 | 1 | 6 |
| Antiques Roadshow | BBC One | 40 | 712 |
| Arena | BBC Two, BBC Four | — | — |
| Around the World in 80 Days with Michael Palin | British Broadcasting Corporation | 1 | 7 |
| Baboon Woman | — | — | — |
| Banded Brothers | — | 1 | 4 |
| Battlefield | — | — | — |
| Beauty and the Beast: Ugly Face of Prejudice | — | — | — |
| Being: Liverpool | — | — | 6 |
| Ben Fogle: New Lives in the Wild | Channel 5 | 16 | — |
| Benefit Busters | Channel 4 | — | — |
| Benefits Street | Channel 4 | 2 | 5 |
| Berlin | BBC Two | 1 | 3 |
| Best Of British | BBC One | 5 | 67 |
| Beyond a Joke | — | — | — |
| Big Ballet | Channel 4 | 1 | 3 |
| Big Fat Gypsy Weddings | Channel 4 | 2 | 18 |
| Big, Bigger, Biggest | National Geographic | 3 | 20 |
| Bigfoot Files | Channel 4 | 1 | 3 |
| Billy Connolly's Route 66 | ITV1 | 1 | 4 |
| Billy Connolly: Journey to the Edge of the World | ITV1 | — | 4 |
| Bizarre ER | BBC Three | 5 | 40 |
| Blood, Sweat and T-shirts | BBC Three | — | 4 |
| Bloody Britain | — | — | — |
| Boats that Built Britain | BBC Four | 1 | 6 |
| Body Shock | Channel 4 | — | — |
| Bodyshockers | Channel 4 | 3 | — |
| Boiling Point | — | — | — |
| Born to Be Different | — | — | — |
| Break Point | Netflix | 2 | 16 |
| Britain From Above | BBC One, BBC Two, BBC Four, BBC HD | 1 | 6 |
| Britain's Biggest Warship | BBC Two | 1 | 3 |
| Britain's Fattest Man | — | — | — |
| Britain's Finest | — | — | — |
| Britain's Underworld | — | 2 | — |
| British Gangsters: Faces Of The Underworld | — | 1 | 6 |
| British Masters | BBC Four | — | — |