OpenStax
Open Stax: Prosperity and Cold War Fears 1945 60: Popular Culture and Mass Media
Examines the impact that rock and roll music, movies and the invention of television had on America in the 1950s.
National High Magnetic Field Laboratory
Magnet Academy: Iconoscope 1923
American inventor Vladimir Zworykin, the "father of television," conceived two components key to that invention: the iconoscope and the kinescope.
PBS
Pbs: People and Discoveries: Television Is Developed, 1926
Gives a brief account of the inventors and developments that lead up to the creation of television.