Conversation so far:
Was there anything you found interesting?
During the late 1940s, he began working full-time on short stories and radio scripts.
What was the name of one of his short stories?
The Meanest Man in the World (with James Stewart), Cavalcade of America.

Question: When did he write it?
Self-contained rewrite: When did Paddy Chayefsky write The Meanest Man in the World?