Conversation so far:
When did Johnny Carson move?
On May 1, 1972, the show was moved from Thirty Rockefeller Plaza, New York, to Burbank, California.
Why did he move?
because of the studio's proximity to the celebrities.
Did he leave family?
CANNOTANSWER.
Are there any other interesting aspects about this article?
In 1980, at Carson's request, the show cut its 90-minute format to 60 minutes on September 16.
Did hehave any other pull with the show?
CANNOTANSWER.
Did he stay in burbank?
Carson's work schedule became more attenuated.
Did he work any other jobs/?
He refused many offers to appear in films.

Question: Why did he refuse?
Self-contained rewrite: Why did Johnny Carson refuse?