Conversation so far:
When did Bill Cosby start stand up comedy?
Bill Cosby appeared at The Gaslight Cafe beginning in 1961.
Where was Bill Cosby doing stand up comedies?
Bill Cosby lined up stand-up jobs at clubs in Philadelphia and then in New York City.
Where did Bill Cosby perform while in New York?
Bill Cosby performed at The Gaslight Cafe
Did Bill Cosby perform in other cities or states besides philadelphia and new york?
Bill Cosby booked dates in cities such as Chicago, Las Vegas, San Francisco, and Washington, D.C.
Did Bill Cosby perform on TV?
In 1965, Bill Cosby was cast alongside Robert Culp in the I Spy espionage adventure series on NBC.

Question: What show or network did he perform on?
Self-contained rewrite: What show or network did Bill Cosby perform on?