Beginnings: 1938 to 1952 -- Technical Matters -- Early CBS: 1947 to 1955 -- J. Walter Thompson: 1947 to 1955 -- Philco: 1948 to 1955 -- Other Shows: 1950 to 1955 -- Matinee Theatre: 1955 to 1958 -- Hallmark: 1955 to 1965 -- East Coast-West Coast: 1955 to 1963 -- Writers and Actors -- Sponsors: 1945 to 1960 -- The Blacklist: 1948 to 1959 -- The Advent of Tape: 1956 to 1965