Thought I'd post here rather than the TV section... Code-Breakers: Bletchley Park's Lost Heroes Tuesday 25 October 2011 , 21:00 on BBC Two (England, Northern Ireland, Wales only) "Documentary that reveals the secret story behind one of the greatest intellectual feats of World War II, a feat that gave birth to the digital age. In 1943 a 24-year-old maths student and a GPO engineer combined to hack into Hitler's personal super code machine - not Enigma but an even tougher system which he called his 'secrets writer'. Their break turned the Battle of Kursk, powered the D-Day landings and orchestrated the end of the conflict in Europe. But it was also to be used during the Cold War - which meant both men's achievements were hushed up and never officially recognised." BBC - BBC Two Programmes - Code-Breakers: Bletchley Park's Lost Heroes