Conversation so far:
Did Paddy Chayefsky have a television career?
Paddy Chayefsky was one of the most renowned dramatists of the Golden Age of Television.
What roles did Paddy Chayefsky play?
Paddy Chayefsky was involved in all casting decisions for the television play Marty and had a cameo role, playing one of Marty's friends, unseen, in a car.
Did Paddy Chayefsky do any other roles besides his cameo role in the television play Marty?
After filming The Hospital, Paddy Chayefsky spoke the opening narration after several actors were rejected for the job.

Question: What was a significant fact that you found interesting in this article?
Self-contained rewrite: What was a significant fact that you found interesting in the Paddy Chayefsky article?