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Revisit the most compelling mysteries explored over the past 15 years of "Ancient Aliens." Experts like Giorgio Tsoukalos, David Childress, William Henry, and Jason Martell engage in conversations around Ancient Astronaut Theory in each episode.
Alien Encounters
Alien Files: Reopened
The Proof Is Out There: Alien Edition
Truth Hunter
Ultraman Ace
Ultraman Nexus
Taken
Buck Rogers in the 25th Century
ALF
Ultraman Gaia
3rd Rock from the Sun
Childhood's End
Ultraman
Ultraman Dyna
Return of Ultraman
Ultraman Leo
DoDo, The Kid from Outer Space
The Visitors