Series with the first letter - "T"
- The Marvelous Mrs. Maisel (2017–…)
- The Mash Report (2018)
- The Mask (1995–1997)
- The Masked Dancer (2020–…)
- The Masked Singer (2019–…)
- The Mating Game (2021)
- The Mayor (2017–2018)
- The Meeting Place Cannot Be Changed (1979–…)
- The Melancholy of Haruhi Suzumiya (2006–2009)
- The Men Who Built America: Frontiersmen (2018–…)
- The Mentalist (2008–2015)
- The Messengers (2015)
- The Method (2015–…)
- The Metropolitan Opera HD Live (2006–…)
- The Michael J. Fox Show (2013–2014)
- The Mick (2017–2018)
- The Middle (2009–2018)
- The Midnight Club (2022–…)
- The Midnight Gospel (2020–…)
- The Midwich Cuckoos (2022–…)
- The Mighty Boosh (2003–2007)
- The Mighty Ones (2020–2022)
- The Mind of the Married Man (2001–2002)
- The Mind, Explained (2019–…)
- The Mindy Project (2012–2017)
- The Miniaturist (2017)
- The Minutes Collection (2017)
- The Miracle (2018–…)
- The Missing (2014–…)
- The Mist (2017)