Crispin Sadler

From a long lost US base beneath the Arctic ice cap, to a sunken Soviet submarine, the Cold War's toxic legacy is both fascinating and terrifying.

Infamous disappearances of ships and aircrafts, stories of lives lost — they’re all part of the legend of the 500,000-square-mile expanse of the Atlantic Ocean known as the Bermuda Triangle. In this one-hour special, National Geographic Channel explores the area’s ominous reputation by draining the water from it to see what exactly lies below the surface of the mythical triangle. With the aid of data from sophisticated sonar surveys, see what the ocean floor looks like below the Bermuda Triangle. Witness what strange geological features will be revealed and whether they will shed light on the mysterious occurrences that have been documented within the boundaries of this area of ocean.

6.5/10

Natural World is a nature documentary television series broadcast annually on BBC Two and regarded by the BBC as its flagship natural history brand. It is currently the longest-running series in its genre on British television, with more than 400 episodes broadcast since its inception in 1983. Natural World is produced by the BBC Natural History Unit in Bristol, but individual programmes can be in-house productions, collaborative productions with other broadcasters or films made and distributed by independent production companies and purchased by the BBC. Natural World programmes are often broadcast as PBS Nature episodes in the USA. Since 2008, most Natural World programmes have been shot and broadcast in high definition.

8.6/10