In this series, investigators looks for evidence to back up theories that aliens visited Earth long ago and helped humans to build advanced civilizations. Also addressed is the possibility that aliens are still around, but their presence is being kept secret by a shadowy global conspiracy.Ancient Aliens is a series that is currently running and has 16 seasons (207 episodes). The series first aired on April 20, 2010.
Ancient Aliens is available for streaming on the History website, both individual episodes and full seasons. You can also watch Ancient Aliens on demand at Amazon Prime, Netflix, Amazon, Hulu, Vudu, FuboTV, Microsoft Movies & TV, Sling, Google Play, Hoopla, Apple TV, History, Pluto TV, Philo, IMDb TV and Peacock.