| Blockbusters | ITV, Sky One, BBC Two, Challenge, Q1114052 | game show | — | — |
| Blood Money | — | — | 1 | 6 |
| Blood of the Clans | BBC One Scotland | — | — | 3 |
| Blood Rights | — | — | — | — |
| Blood Strangers | — | — | — | — |
| Blood, Sweat and T-shirts | BBC Three | documentary television program | — | 4 |
| Bloodlands | BBC One | — | — | — |
| Bloods | — | — | — | — |
| Bloody Britain | — | documentary television program | — | — |
| Bloomers | BBC Two | sitcom | — | 5 |
| Blott on the Landscape | BBC Two | — | 1 | 6 |
| Blouse and Skirt | BBC Two | comedy television series | 1 | 8 |
| Blue Heaven | — | documentary film | 1 | 6 |
| Blue Heaven | Channel 4 | sitcom | 1 | 7 |
| Blue Lights | BBC One | police procedural | 3 | 18 |
| Blue Murder | Katholieke Radio Omroep, ITV | drama television series | 5 | 19 |
| Blue Peter | BBC One | children's television | — | 5,460 |
| Blue Peter Special Assignment | BBC One | — | — | 39 |
| Blue Planet II | BBC One | nature documentary | 1 | 7 |
| Bluebell | — | — | — | 8 |
| Bluebirds | — | — | 1 | 6 |
| Blues and Twos | — | — | — | — |
| Bluestone 42 | BBC Three | comedy drama | 3 | 21 |
| Blunder | Channel 4 | — | — | 6 |
| Bo' Selecta! | Channel 4 | LGBT-related television series | 5 | 45 |
| Boarders | BBC Three | teen drama television, comedy drama | 2 | 12 |
| Boats that Built Britain | BBC Four | documentary film, documentary television program | 1 | 6 |
| Bob & Rose | ITV | drama television series, LGBT-related television series | 1 | 6 |
| Bob and Carol Look for Treasure | — | — | — | — |
| Bob Martin | ITV | sitcom | 2 | 12 |
| Bob Servant | BBC Four | sitcom | 2 | 9 |
| Bob the Builder | MediaCorp Channel 5 | — | 3 | 130 |
| Bob's Full House | BBC One | — | 6 | 109 |
| Bobinogs | CBeebies | — | 1 | 98 |
| Bod | British Broadcasting Corporation | — | — | 13 |
| Bodger & Badger | BBC One | — | 9 | 124 |
| Bodies | BBC Three | medical drama | 2 | 17 |
| Body Hits | TechTV | — | — | 13 |
| Body Shock | Channel 4 | documentary television program | — | — |
| Body Story | Channel 4 | — | 2 | 6 |
| Bodyguard | BBC One | drama television series | 1 | 6 |
| Bodyguards | ITV | drama television series | 1 | 7 |
| Bodyshockers | Channel 4 | documentary television program | 3 | — |
| Bognor | — | drama television series | 2 | 21 |
| Bognor or Bust | ITV | panel game | 1 | 6 |
| Boiling Point | BBC One | — | — | — |
| Boiling Point | — | documentary television program | — | — |
| Bomber | — | — | — | 2 |
| Bombshell | — | — | 1 | 7 |
| Bonekickers | BBC One | drama television series, treasure hunt film | 1 | 6 |
| Bonjour la Classe | BBC One | sitcom | 1 | 6 |
| Bonkers! | — | — | — | — |
| Bonn - Alte Freunde, neue Feinde | Das Erste, ITV | historical drama, drama television series | 1 | 6 |
| Boohbah | ITV | fantasy television program, children's television series | 2 | 104 |
| Book of Cool | — | reality television | — | — |
| Bookaboo | CITV | — | 3 | 55 |
| Bookish | — | — | — | — |
| Bookmark | — | — | — | — |
| Boom Town | BBC Three | reality television, comedy television series | 1 | 6 |
| Boon | — | — | — | — |