Discovery Channel HD UK

S2 E6 Lost and Found The true identity of infamous plane hijacker D.B. Cooper may finally be revealed; the fate of Michael Rockefeller, lost heir to the Rockefeller fortune, is exposed; the car in which James Dean died might not be missing any more.

S10 E11 Sunken City of Helike: The Hunt for the Real Atlantis In 373 B.C., the Greek city of Helike vanished; archaeologists believe they've found the ruins of the great lost metropolis; using CGI, experts re-create the city's final moments and reveal its links to the greatest lost land of all -- Atlantis.

S11 E16 Unfriended It's the final race of the season and everyone is preparing for their last chance to move up the list. The tension has never been higher between the racers in the 405.

S10 E4 Secrets of Hadrian's Villa Hadrian's Villa is the largest Roman palace ever constructed and demonstrates the opulent peak of Rome's ancient engineering; experts investigate secrets that could reveal the truth behind one of Rome's most enigmatic emperors.