The video below is well worth the 21 minutes. Serling goes into sponsors as censors, consumerism, the potential for great television, and much more. He had experience with trying to engage race issues on T.V. and finding that his story was gutted. He talks about precensorship – themes writers avoid. He explains the way the system converges to make that so. There is a great story about Lassie having puppies and some crazy controversy about that being a sex show. Want associational harm? A line was cut about gas chambers from Judgment at Nuremberg because a sponsor that sold gas stoves for kitchens did not want that connection. As I recall another story was set in the British navy and so asked for tea. A sponsor sold coffee. The compromise. A tray of unspecified drinks was served.
Behold a man. Smart. Dedicated. Passionate. Turned to science fiction from drama. The reason? To avoid that place he created, The Twilight Zone.