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 Soap opera A soap opera is an ongoing drama serial on television or radio, featuring the lives of many characters and their emotional relationships. The term "soap opera" originated from radio dramas being sponsored by soap manufacturers. BBC Radio's "The Archers", first broadcast in 1950, is the world’s longest-running radio soap opera; the world's longest-running television soap opera is "Coronation Street", first broadcast on ITV in 1960. The first serial considered to be a "soap opera" was "Painted Dreams", which debuted on October 20, 1930 on Chicago radio station WGN. Early radio series such as "Painted Dreams" were broadcast in