Streaming, rent, or buy Ancient Aliens – Season 16:
Currently you are able to watch "Ancient Aliens - Season 16" streaming on Hulu, Philo, HISTORY Vault Apple TV Channel, HISTORY Vault Amazon Channel, History or for free with ads on The Roku Channel, History. It is also possible to buy "Ancient Aliens - Season 16" as download on Apple TV.
There aren't any free streaming options for Ancient Aliens right now. If you want know when it is streaming for free, click 'Free' in the filters above and hit the notification bell.