April 1, 2009
The serial debuted in a 15-minute format on NBC radio on Jan. 25, 1937 and moved to CBS (airing concurrently on broadcast and radio) beginning on June 30, 1952. The radio show ended in 1956, and The Guiding Light ultimately expanded to 30-minutes in 1967.
Ten years later it became a full daily hour.
“Guiding Light has achieved a piece of television history that will never be matched; it has crossed mediums, adapted its stories to decades of social change and woven its way through generations of audiences like no other," said Nancy Tellem, President, CBS Paramount Network Television Entertainment Group. "This daytime icon will always be an indelible part of CBS's history, with a legacy of innovation and reputation for quality and excellence at every step of the way. While its presence will be missed, its contributions will always be celebrated and never be forgotten."
There is no word at present what CBS will fill the weekday hour with.