Ken Burns: Empire Of The Air: Men Who Made Radio (DVD)

From Ken Burns, producer of THE CIVIL WAR, comes the story of radio's creation of radio and three men of genius, vision, and determination: Lee De Forest, a clergyman's flamboyant son; Edwin Howard Armstrong, a brilliant, withdrawn inventor; and David Sarnoff, a hard-driving Russian immigrant who created the world's most powerful communications company. This film evokes the lives of three men whose work profoundly transformed modern America.