Highlighting the 217 most popular tv shows.
- M*A*S*H
- MacGyver
- Mad Dogs
- Mad Men
- Madam Secretary
- The Madame Blanc Mysteries
- Made In Chelsea
- Magic City
- The Magicians
- Magnum P.I. ('18)
- Magnum P.I. (Reboot)
- Magnum, P.I.
- Major Crimes
- Make It or Break It
- The Making of Classic Albums
- The Mallorca Files
- Malory Towers
- Malpractice
- Mammals
- Mammon
- The Man Who Fell to Earth
- The Man from U.N.C.L.E.
- Mandy
- Manhattan
- Manhunt
- Manifest
- Marcella
- Marchlands
- Mare of Easttown
- Mariah's World
- Marie Antoinette
- Marley's Ghosts
- Maron
- Marooned With Ed Stafford
- Marriage
- Married Single Other
- Marry Me
- Mars
- Martin
- Marvel Ultimate Spider-Man
- Marvel’s Avengers Assemble
- Marvel's Agent Carter
- Marvel's Agents of S.H.I.E.L.D.
- Marvel's Avengers Assemble
- Marvel's Cloak & Dagger
- Marvel's Daredevil
- Marvel's Guardians of the Galaxy
- Marvel's Inhumans
- Marvel's Iron Fist
- Marvel's Jessica Jones
- Marvel's Runaways
- Marvel's Spider-Man
- Marvel's The Defenders
- Marvel's The Punisher
- The Marvelous Misadventures of Flapjack
- Mary Berry's Country House Secrets
- Mary Kills People
- Mary Portas: Secret Shopper
- Maryland
- Masha and the Bear
- The Mask: The Animated Series
- Masters of Sex
- Maternal
- The Mating Game
- Maverick
- Max & Ruby
- Maxine
- Maya the Bee
- Mayans M.C.
- Mayday
- Mayfair Witches
- Mayflies
- Mayor of Kingstown
- McDonald & Dodds
- McDonald and Dodds
- McMafia
- Medici: Masters of Florence
- Medium
- Melissa & Joey
- Melrose Place
- Melrose Place (Classic Series)
- The Men Who Built America
- The Menendez Murders: Erik Tells All
- The Mentalist
- Merlin
- The Messengers
- MF Ghost
- Mia and Me
- Miami Vice
- Michael Palin Into Iraq
- Michiko & Hatchin
- The Mick
- Mickey and the Roadster Racers
- Mickey Mouse Clubhouse
- Micky Flanagan
- The Middle
- The Midnight Beast
- Midnight Sun
- Midnight, Texas
- Midsomer Murders
- Midsomer Murders Series 23
- Midwinter of the Spirit
- The Mighty Boosh
- Mike & Molly
- Mike the Knight
- Mildred Pierce
- Miles from Tomorrow
- Miles from Tomorrowland
- Million Dollar Baby
- Milly, Molly
- The Mindy Project
- The Miniaturist
- Minority Report
- Miracle Workers
- The Miracle
- Miraculous
- Miraculous, Tales of Ladybug and Cat Noir
- Miranda
- Miranda Hart
- The Misadventures of Romesh Ranganathan
- Misfit Garage
- Misfits
- Miss Kobayashi's Dragon Maid
- Missing
- The Missing
- Mission Impossible
- Mission Impossible, The Complete Series
- Mister Rogers' Neighborhood
- Mistresses
- mixed-ish
- The Moaning of Life, Series 2
- The Moaning of Life
- The Mob Doctor
- Mob Psycho 100
- Mobile Suit Gundam: The Witch from Mercury
- The Model Agency
- Modern Family
- Modus
- Molly of Denali
- Mom
- Monk
- Monkey
- Monster Math Squad
- Monsters vs. Aliens
- Monty Don's
- Monty Don's Japanese Gardens, Series 1
- Moominvalley
- Moonshiners
- Moonshiners: Master Distiller
- The Moorside
- The Morcambe & Wise Show - The Lost Tapes
- Moriarty the Patriot
- Morph
- Mortimer and Whitehouse: Gone Fishing
- Mosaic
- Moscow Noir, Season 1
- MotherFatherSon
- Motherland
- Motherland Box Set
- Motherland, Series 2
- Motherland: Fort Salem
- Motive
- The Motorbike Show
- Mountain Gorilla
- Mountain Men
- Mountain Monsters
- MR BATES VS THE POST OFFICE
- Mr Selfridge
- Mr Sloane
- Mr. Bean
- Mr. Bean (Animated)
- Mr. Mayor
- Mr. Mercedes
- Mr. Robot
- Mr. Selfridge
- Mr. Sunshine
- Mr. Young
- Mrs Biggs
- Mrs Wilson
- Mrs. America
- Mrs. Brown's Boys
- Mrs. Fletcher
- Mrs. Sidhu Investigates
- MTV Cribs
- MTV Floribama Shore
- MTV Suspect
- Mum
- The Munsters
- Murder in the First
- Murderous History
- Murdoch Mysteries
- Mushoku Tensei: Jobless Reincarnation
- The Musketeers, Series 3
- The Musketeers
- My 600-lb Life
- My 600-lb Life: Skin Tight
- My Adventures with Superman
- My Big Fat Fabulous Life
- My Brilliant Friend
- My Grandparents' War
- My Hero Academia
- My Life Is Murder
- My Little Pony: Friendship Is Magic
- My Mad Fat Diary
- My Mother and Other Strangers
- My Name Is Earl
- My Super Sweet 16 UK
- My Super Sweet Sixteen
- My Unique Skill Makes Me OP even at Level 1
- My Wife & Kids
- The Mysteries of Laura
- Mysteries of the Missing
- Mystery Files
- The Mystery of Edwin Drood
- Mystery Road
- Mystery Road: Origin
- MythBusters