| Atletico Partick | British Broadcasting Corporation | sitcom | — | 7 |
| Atomic | Sky Atlantic | action film, drama fiction | 1 | 5 |
| Attachments | BBC Two | comedy drama | 2 | 26 |
| Attenborough and the Giant Egg | — | nature documentary | — | — |
| Attenborough in Paradise and Other Personal Voyages | — | nature documentary | — | — |
| Attenborough's Life That Glows | British Broadcasting Corporation | documentary film | — | 1 |
| Attenborough: 60 Years in the Wild | — | documentary film | 1 | 3 |
| Attention Scum | BBC Two | comedy television series | — | 6 |
| ATV Midlands News | — | — | — | — |
| ATV Today | — | — | — | — |
| Aubrey | — | — | 1 | 39 |
| Auf Wiedersehen, Pet | ITV | drama television series, comedy television series | 5 | 40 |
| Auntie's Bloomers | BBC One | comedy television series | — | 62 |
| Auntie's Sporting Bloomers | BBC One | comedy television series | 4 | 25 |
| Auschwitz: The Nazis and 'The Final Solution' | BBC One | documentary film, docudrama | — | 6 |
| Authors in Focus | — | — | — | — |
| Auto Trader | — | — | — | — |
| Autopsy: The Last Hours of... | — | — | 9 | — |
| Avoidance | — | — | — | — |
| B&B | CITV | — | 1 | — |
| B4 | Channel 4 | — | — | 180 |
| Baadasss TV | — | — | — | — |
| Babblewick Hall | BBC Radio 4 | — | 2 | 10 |
| Babestation | — | — | — | — |
| Babies | — | drama film | 1 | 6 |
| Baboon Woman | — | documentary television program, nature documentary | — | — |
| Babushka | ITV | game show | 1 | 20 |
| Baby Ballroom | Channel 5 | — | — | — |
| Baby Ballroom: The Championship | — | reality television | — | — |
| Babyfather | BBC Two | — | 2 | 12 |
| Babylon | Channel 4 | drama television series | 1 | 7 |
| Bachelor Father | British Broadcasting Corporation | sitcom | 2 | 22 |
| Back | Channel 4 | sitcom | — | 6 |
| Back to Life | BBC One | comedy television program, drama television series | — | — |
| Back to Reality | Channel 5 | reality television | — | — |
| Back to Sherwood | — | — | — | 13 |
| Back to the Floor | British Broadcasting Corporation | documentary film | 5 | — |
| Backchat | BBC Three | talk show, comedy television series | 2 | 15 |
| Backs to the Land | ITV | sitcom | 3 | 19 |
| Backup | BBC One | — | 2 | 14 |
| Bad Boyes | BBC One | — | 2 | 16 |
| Bad Education | BBC Three | sitcom, LGBT-related television series | 3 | 19 |
| Bad Girls | ITV | drama television series, LGBT-related television series | 8 | 107 |
| Bad Habits, Holy Orders | Channel 5 | — | 1 | 4 |
| Bad Influence! | ITV | — | 4 | 57 |
| Bad Move | ITV1 | — | 1 | 3 |
| Bad Penny | — | children's television series | — | — |
| Bad Robots | E4 | — | 2 | 12 |
| Bad Sisters | Apple TV | black comedy, thriller film | 2 | 18 |
| Bad Sugar | Channel 4 | — | — | — |
| Baddiel and Skinner Unplanned | ITV | — | 5 | 60 |
| Baddiel's Syndrome | — | — | 1 | 13 |
| Badger | — | — | — | 13 |
| Badger Girl | — | — | — | — |
| Badger or Bust | — | — | 1 | 6 |
| BADMAN | — | — | — | — |
| Baggage | Channel 4 | game show | 1 | 8 |
| Baghdad Central | Channel 4 | crime thriller film, neo-noir | — | — |
| Bait | — | — | — | — |
| Bake Off: Crème de la Crème | BBC Two | — | 1 | 5 |