Soap opera soap opera "Guiding Light" (originally titled "The Guiding Light" until 1975) started as a radio drama in January 1937 and subsequently transferred to television in June 1952. With the exception of several years in the late 1940s, during which creator Irna Phillips was involved in a dispute with Procter & Gamble, "Guiding Light" was heard or seen nearly every weekday from 1937 until 2009, making it the longest story ever told in a broadcast medium. Originally serials were broadcast as fifteen-minute installments each weekday in daytime slots. In 1956, "As the World Turns" and "The Edge of Night", both produced
Metropolitan Opera radio broadcasts series continued on the Blue Network's successor, ABC, through 1958. From 1958 to 1960 the series was broadcast on CBS. As network radio waned with the rise of television, the Met founded its own independent Metropolitan Opera Radio Network in 1960, which is now heard on radio stations around the world. The Met's first live closed-circuit television transmission was "Carmen" with Rise Stevens, sent to 31 movie theaters in 27 US cities on December 11, 1952. In Canada the live broadcasts have been heard since December 1933, first on the Canadian Radio Broadcasting Commission. Since 1934 they have been heard