X
- Xena: Warrior Princess (1995–2001), fantasy
- The X Factor (September 21, 2011 – present), reality
- The X-Files (1993–2002), sci-fi/horror
- X-Men (1992–1997), animated
- X-Men: Evolution (2000–2003), animated
- X-Play (2000–present), video game newsmagazine
Read more about this topic: List Of American Television Series