In 1937, Phillips collaborated with Emmons Carlson on her third radio serial, "The Guiding Light" (shortened to simply "Guiding Light" after 1975), basing it on personal experiences; after giving birth to a stillborn child at age 19, she found spiritual comfort listening to sermons by a preacher of a church centered on the brotherhood of man. It was these sermons that formed the nucleus of the creation of "The Guiding Light". From 1937 to 1946, the series was broadcast from Chicago on the NBC radio network. The show was cancelled by NBC twice; once in 1939, and once in 1946. After the first time on October 13, 1939, it was brought back by popular demand of the listening audience and began again only four months later on January 22, 1940. NBC cancelled the series a second time on November 29, 1946, coinciding with the U.S. Federal Communications Commission forcing a split of NBC and the creation of the ABC network. CBS would pick up the series seven months later on June 2, 1947, where it transferred to television in June 1952, and where it would stay for the remainder of its run until its television conclusion in September 2009.