Date:

UFO Europe: The Untold Stories

Date:

Unidentified: Inside America's UFO Investigation

Date:

NASA's Unexplained Files

Date:

Close Encounters

Date:

Chasing UFOs

Date:

Alien Encounters: Fact or Fiction

Date:

Beyond: UFOS and the Unknown

Date:

UFOs Declassified

Date:

Encounter: UFO

Date:

Evidence of the Unexplained 

Date:

Hangar 1: The UFO Files

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UFO

Date:

Investigation Alien

Date:

Encounters

Date:

The Secret of Skinwalker Ranch

Date:

Ummo: La España alienígena

Date:

Unsolved Mysteries

Date:

America Undercover

Date:

The Proof Is Out There: Bermuda Triangle Edition

Date:

Top Secret UFO Projects Declassified