Just stumbled across this event and it has several WW2 topics and all are available free online. See: Chelsea History Festival Today 6-8pm there is a panel on Bletchley Park: How intelligence changed WW2: Bletchley Park: How Intelligence Changed the Second World War Tomorrow Dan Todman on 'Britain's War; A New World 1942-1947: Britain's War: A New World, 1942-47 On Friday 25/9 two: Special Operations and Intelligence in Norway by Tony Insall; 12-1pm and evening 'Sonya' (Soviet lady spy) by Ben McIntyre.