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 Hotspot Connection
- Episode 2: The Crop Circle Code
- Episode 3: Mystery of the Lost Civilization
- Episode 4: The Power of the Obelisks
- Episode 5: The MUFON Files
- Episode 6: Cosmic Impacts
- Episode 7: Close Encounters of the Fifth Kind
- Episode 8: The Mysteries of Alaska
- Episode 9: Aliens in our Airspace
- Episode 10: The Giants of Malta
- Episode 11: The Top Ten Pyramid Sites
- Episode 12: The Top Ten Mysterious Devices
- Episode 13: The Top Ten Mysterious Islands
- Episode 14: The Top Ten Alien Craft
- Episode 15: Edgar Cayce: The Sleeping Prophet
- Episode 16: The Gods of Greece
- Episode 17: The New UFO Hunters
- Episode 18: Power of the Talisman
- Episode 19: The Top Ten Mysteries of the Deep
- Episode 20: The Top Ten Alien Petroglyphs
Ancient Aliens Season 19 Mystery of the Lost Civilization
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.
