Series with titles starting with letter "M"
- Mysteriet på Greveholm (1996–…)
- Mystery Files (2010–…)
- Mystery Road (2018–…)
- Mystery Road: Origin (2022–…)
- Mystery Science Theater 3000 (1988–1999)
- Mystery Science Theater 3000 (2017–2022)
- Mystery!: Cadfael (1994–1996)
- Mystery!: Campion (1989–1990)
- Myth of the Zodiac Killer (2023)
- MythBusters (2003–…)
- Mythbusters Jr. (2019–…)
- Mythic Quest: Raven's Banquet (2020–…)
- Mythical Beasts (2018–…)
- Mythomaniac (2019)