From none other than Vladimir Zworykin, and R. E. Shelby, here is an engineer’s dream come true…a full report on the state of television in 1940. BUT…at the start is a very interesting historical look back on how they got there, which highlights things that Dr. Zworykin believes to be milestones…including the work or Filo T. Farnsworht!  Glad he gave credit, where credit is due.