Complex sentence: Bob Bailey continued in the role (and wrote one episode, "The Carmen Kringle Matter") until 1960, when CBS Radio shut down production on the west coast and moved its radio drama unit to New York.
Split into simpler sentences: Bob Bailey continued in the role (and wrote one episode, "The Carmen Kringle Matter") until 1960. In 1960 CBS Radio shut down production on the west coast and moved its radio drama unit to New York.