Serial (radio and television) usually ran from Monday through Friday at exactly the same time every day. A show called The Smith Family which ran only one night a week on WENR in Chicago during the early 1930s was credited as the "great-granddaddy of the soap operas" by radio historian Francis Chase, Jr. One of the other shows that helped pioneer the daytime soap opera/serial was "The Guiding Light", which debuted on NBC radio in 1937, and then switched to CBS Television in 1952. "The Guiding Light" final episode aired on September 18, 2009, having a total of 15,762 episodes air on CBS. Some
Soap opera included "Goede tijden, slechte tijden" (1990–present), "Onderweg naar Morgen" (1994–2010) and "Goudkust" (1996–2001). In 2016 "Goede tijden, slechte tijden" spin-off "Nieuwe Tijden" started airing. U.S. daytime serials "As The World Turns" and "The Bold and the Beautiful" have aired in the Netherlands; "As the World Turns" began airing in the country in 1990, with Dutch subtitles. In the 1980s, West German networks successfully added American daytime and primetime soap operas to their schedule before Das Erste introduced its first self-produced weekly soap with "Lindenstraße", which was seen as a German counterpart to "Coronation Street". Like in other countries, the soap