| Morgana Robinson's The Agency | BBC Two | — | 1 | 7 |
| Morning Call | Q1023911, CNBC | business, news program | — | — |
| Morning Exchange | Q1023911 | — | — | — |
| Morning Live | BBC One | — | — | — |
| Mortimer & Whitehouse: Gone Fishing | BBC Two | factual television program | 5 | 32 |
| Mortimer and Arabel | — | children's television series | 2 | 36 |
| Mortimer's Law | — | — | — | 6 |
| Moses | BBC One | documentary film | 1 | 1 |
| Moses Jones | BBC Two | — | 1 | 3 |
| Most Annoying People | BBC Three | — | 6 | 12 |
| Most Evil Killers | — | — | — | — |
| Most Haunted | Sky Witness | — | 18 | 207 |
| Most Haunted Live! | — | — | — | — |
| Most Haunted: Midsummer Murders | — | — | 1 | 7 |
| Mother and Baby | — | — | — | — |
| Mother Love | BBC One | — | 1 | 4 |
| MotherFatherSon | BBC Two | drama television series | 1 | 8 |
| Motherland | — | — | — | — |
| Motive for Murder | — | drama television series | — | — |
| Motormouth | ITV | children's television series | 4 | 150 |
| Motorway Cops | BBC One | reality television | 7 | 33 |
| Mount Pleasant | — | comedy drama | 6 | 42 |
| Mountain | BBC One | documentary film | — | 5 |
| Mountain Gorilla | — | nature documentary | — | — |
| Mouse and Mole | BBC Children's and Education | — | 1 | 19 |
| Mouth to Mouth | BBC Three | comedy drama | 1 | 6 |
| Movie Connections | BBC One | documentary film | — | 16 |
| Movie Lounge | — | — | — | — |
| Moviedrome | BBC Two | — | 13 | 207 |
| Movies, Games and Videos | ITV | — | 10 | — |
| Moviewatch | Channel 4 | — | — | — |
| Moving | ITV | sitcom | 1 | 6 |
| Moving On | BBC One | drama television series | 12 | 65 |
| Moving Pictures | — | — | — | — |
| Moving Story | — | — | — | 13 |
| Moving Wallpaper | — | comedy drama | 2 | 18 |
| Mr Bates vs The Post Office | ITV | docudrama | — | 4 |
| Mr Bloom's Nursery | CBeebies | children's television series | — | — |
| Mr Don & Mr George | — | sitcom | — | — |
| Mr Drew's School for Boys | — | — | — | — |
| Mr Justice Duncannon | BBC One | sitcom | 1 | 6 |
| Mr Loverman | BBC One | LGBT-related television series | — | — |
| Mr Majeika | Television South | — | — | 19 |
| Mr Moon | — | — | — | — |
| Mr Selfridge | ITV | drama television series, drama film | 4 | 40 |
| Mr. and Mrs. | ITV | game show | — | — |
| Mr. Bean | ITV | sitcom, physical comedy, family film, comedy film | 6 | 14 |
| Mr. Big | — | — | — | — |
| Mr. Bigstuff | — | — | — | — |
| Mr. Crabtree Goes Fishing | — | — | — | — |
| Mr. Digby Darling | — | — | — | — |
| Mr. Men and Little Miss | ITV | animation | 3 | 104 |
| Mr. Palfrey of Westminster | ITV | drama television series | 2 | 10 |
| Mr. Pastry's Progress | — | — | — | — |
| Mr. Sloane | Sky Atlantic | comedy | 1 | 6 |
| Mrs Biggs | ITV | drama television series | 1 | 5 |
| Mrs Merton and Malcolm | BBC One | sitcom | 1 | 6 |
| Mrs Sidhu Investigates | Acorn TV | — | 1 | 4 |
| Mrs Thursday | — | — | — | — |
| Mrs Wilson | BBC One | drama | 1 | 3 |