Series with the first letter - "M"
- M*A*S*H (1972–1983)
- MacGyver (2016–…)
- MacGyver (1985–1992)
- Macross Frontier (2008)
- Mad About You (1992–1999)
- Mad About You (2019–…)
- Mad Dogs (2011–…)
- Mad Dogs (2015–2016)
- Mad Men (2007–2015)
- Madagascar (2011)
- Madagascar: A Little Wild (2020–…)
- Madam Secretary (2014–…)
- Made for Love (2021–…)
- Made in Heaven (2019–…)
- Made in Jersey (2012)
- Made in Oslo (2022–…)
- Made in Wales (2009–…)
- Madoff: The Monster of Wall Street (2023–…)
- Mafia's Greatest Hits (2012–…)
- Maggie (2022–…)
- Magic City (2012–2013)
- Magic for Humans (2018–…)
- Magic Knight Rayearth (1994–1995)
- Magic Numbers: Hannah Fry's Mysterious World of Maths (2018–…)
- Magical Project S (1996–1997)
- Magnificent Century (2011–2014)
- Magnolia Table with Joanna Gaines (2021–…)
- Magnum P.I. (2018)
- Magnum, P.I. (1980–1988)
- Magpie Murders (2022–…)