Conversation so far:
When did Johnny Carson go on radio?
Carson began his broadcasting career in 1950 at WOW radio and television in Omaha.
What did Johnny Carson do on television?
Carson soon hosted a morning television program called The Squirrel's Nest.

Question: Did he do any other radio shows?
Self-contained rewrite: Did Johnny Carson do any other television shows besides The Squirrel's Nest?