Beginning on January 7, 1940, the regular cast, apart from Bergen and McCarthy, were dropped and the show was cut to a half-hour and retitled The Chase and Sanborn Program""'. Ameche was replaced by his younger brother Jim Ameche. Also beginning in 1940, the program went on hiatus for a number of weeks each summer. NBC (and the sponsor) filled its airtime with a different summer replacement show each year, including "The Bishop and the Gargoyle" (1940), "What's My Line?" (1941), "Star-Spangled Vaudeville" (1942), "Paul Whiteman Presents" (1943), "The Gracie Fields Show" (1944), "The Frances Langford Show" "The Chase and Sanborn Program" (1945), and "Alec Templeton Time" (1946-47). In the fall of 1948, Chase and Sanborn announced it would terminate its contract with Edgar Bergen at the end of the year. The remaining Bergen/McCarthy programs eschewed guest stars in favor of regular sketches featuring Don Ameche and Marsha Hunt as "The Bickersons". In 1949, Bergen moved to CBS, with a new weekly program ("The Charlie McCarthy Show") sponsored by Coca-Cola.