PBS: Hitler's Sunken SecretPBS/NOVA is rebroadcasting "Hitler's Sunken Secret"
One of the most daring clandestine operations of World War II was the 1944 sinking of the Norwegian ferry Hydro with its cargo of "heavy water" destined for the Nazi's secret atomic bomb project. Although the mission was declared a success, no one ever established if the special shipment was actually on board. In this program, NOVA plunges 1,300 feet beneath a remote Norwegian lake to find the answer.
Exploring the pristine lake bottom with a remotely operated vehicle, the expedition team locates the remarkably well-preserved ship, along with evidence of a mysterious cargo in steel drums. Analysis of the contents of one of those drums will solve a six-decade-long mystery about the role the Allies played in preventing a Nazi nuclear bomb.
So find a spare tape or tell your DVR.