Tech over time By CailynBird Jan 7, 1927 The dissector tube was first patented by Philo Farnsworth It eventually became an important component for the development of television Sep 11, 1927 - The first drama, The Queens Messenger, was broadcasted from Schenectady, New York 1929 Vladmir Zworykin demonstrated the first practical electronic system for the transmission and reception of images 1946 The development of television went backwards after America’s involvement in World War II May 7, 1947 The debut of two television programs both broadcasted by NBC