Published on 11 Feb 2013 :
Robert Watson-Watt is credited with developing the first full-fledged working system of RADAR. This 10-minute documentary gives a brief history of his accomplishments and significance in the Battle of Britain.
Robert Watson-Watt and RADAR : A Turning Point for British Defence
A documentary produced by Jack Barth : http://youtu.be/H9KKZGf5Hb0