sentences:  In later years, he wrote, produced and directed many dramas for "The United States Steel Hour" and "Armstrong Circle Theatre" and also wrote for "The Edge of Night" and "The Secret Storm".He later worked as a writer, director and producer for the Guy Lombardo and Morton Downey radio programs, as well as "Broadway Calling" with Gertrude Lawrence.Lowther joined the DuMont Television Network as an executive producer starting with its inception in 1945.