Season
- Season 20 2024-01-05
- Season 19 2023-01-06
- Season 18 2022-01-07
- Season 17 2021-08-06
- Season 16 2020-11-13
- Season 15 2020-01-25
- Season 14 2019-05-31
- Season 13 2018-04-27
- Season 12 2017-04-28
- Season 11 2016-05-06
- Season 10 2015-07-24
- Season 9 2014-10-31
- Season 8 2014-06-13
- Season 7 2014-01-24
- Season 6 2013-09-30
- Season 5 2012-12-21
- Season 4 2012-02-17
- Season 3 2011-07-28
- Season 2 2010-10-28
- Season 1 2010-04-20
- Season 0 2009-03-08
Episode
- Episode 1: The Top Ten Alien Influencers
- Episode 2: The Top Ten Extraordinary Creatures
- Episode 3: The Top Ten Hidden Alien Bases
- Episode 4: The Top Ten Scariest Encounters
- Episode 5: The Top Ten Alien Codes
- Episode 6: The Top Ten Alien Disasters
- Episode 7: Secrets Of The Sumerians
- Episode 8: The UFO Superhighway
- Episode 9: Mysteries of Scotland
- Episode 10: Mystery of the Stone Spheres
- Episode 11: Mysteries of the Maya
- Episode 12: Unlocking the Stargates
- Episode 13: The Whistleblowers
- Episode 14: The Search For Extraterrestrial Intelligence
- Episode 15: Jacques Vallée: UFO Pioneer
Ancient Aliens Season 20 The Top Ten Alien Disasters
Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate.
