Guiding Light (known as The Guiding Light before 1975, or simply GL) is an American television soap opera that is credited by the Guinness Book of World Records as the longest running drama in television history, running from 1952 until 2009, preceded by a 15-year broadcast on the radio. When combining its total run of 72 years on radio and television, Guiding Light is the second-longest running program of any kind in history, exceeded only by Music and the Spoken Word. With over 18 000 episodes produced, Guiding Light has more episodes than any program in the history of radio and television, and four times more episodes than Music and the Spoken Word.
