National Geographic Channel HD Saturday

People share stories of close encounters with entities associated with the phenomena, while professionals try to make sense of their experiences

The story of a small colony founded on Roanoke island, off the eastern coast of North America, in 1587 - only for the settlers to disappear in mysterious circumstances

The urban treasure hunters trawl through estate sales and auction houses in search of valuable silverware in the hope of uncovering some profitable pieces

Rich gets access to a manufacturing equipment warehouse and finds a robotic arm, while Dave searches old cars for catalytic converters that contain valuable platinum

Meet the great grandson of legendary bourbon-maker Jim Beam and discover how chocolate milk and burritos are created from raw materials to finished products

From raw materials to finished products, how are mass-produced favourites really made? Discover the story behind ramen noodle bowls, Challah, and a chewy candy bar

In Colorado, Sean Rich examines a 76lb bar of silver that may have come from the most famous Spanish shipwreck rescue in history

Bidders vie for an 18th-century flintlock. The four-barrel gun was so complex and expensive to produce that only the wealthy could afford one, making such items highly desirable

Two pregnant females struggle to survive when their mates are killed. One is taken in by the male that killed the father of its offspring - whose own mate is less than pleased

Teleshopping. U.

Teleshopping. U.