Bill Day investigates unknown creatures
Bill Day
Himself
Robert Kiviat
NASA's Unexplained Files
2012
Close Encounters
2014
Investigation Alien
2024
Evidence of the Unexplained
2023
Beyond: UFOS and the Unknown
Terre de légendes
Destination Truth
2007
Aliens - striden om utomjordingarna
UFO
1999
Encounter: UFO
2021
Mindgap med Agneta Sjödin
2025
The Secret of Skinwalker Ranch
2020
Absurd Planet
Expedition Bigfoot
2019
Fabulous Animals
1975
Hangar 1: The UFO Files
2015
UFOs Declassified
