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
Soap opera September 2008 to July 2012. Other Sigma TV weekday shows include "Akti Oniron" (which ran from 1999 to 2001), "Vourate Geitonoi" (which ran from 2001 to 2005, and was the most successful weekdaily series, achieving ratings shares of up to 70% of all television households in the country), "Oi Takkoi" (which ran from 2002 to 2005), "S' Agapo" (which ran from 2001 to 2002), "Vasiliki" (which ran from 2005 to 2006), "Vendetta" (which ran from September 2005 to December 2006), "30 kai Kati" (which ran from 2006 to 2007) and "Mila Mou" (which ran from September 2007 to January 2009).