Is it possible to do a live broadcast with a regular camera?

How did a TV recording studio broadcast live television via a film camera before the use of video in 1952?

• Answer:

  Video cameras had been around for two decades by 1952 so live broadcasts used video rather than film. Recording video was rather harder because video recorders were not available until the mid 1950s. To capture content for broadcast later demanded that film was used. The film was then run through a tele-cine unit. It is similar to a film projector but had a video camera mounted in front of the specially made lens. The film was played in sync with the the television frame timing and each film frame was converted to video. Tele-cine equipment is still in use today and although they are far more sophisticated, they work on exactly the same principle as the early units.