Summary: Guiding Light is the longest running drama of all time. It began as a 15 minute radio show in 1937, running until 1947. It then ran through its metamorphosis into a television drama until 1956. In 1952, it became a television show and the radio and television programs ran concurrently for some time. Today this television show is still running. It was originally sponsored by Procter and Gamble, who put the “soap” in soap opera.
