Theorists believe that thousands of years ago, extraterrestrials landed on Earth in the season 20 premiere of History Channel’s hit series “Ancient Aliens” set to air Thursday, January 15 at 9 p.m.
The Alien Edition premieres tonight at 10 p.m. and is available to stream without a cable subscription through Philo or DIRECTV.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results