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 July 2009, the schedules of these serials were changed again. On 23 July 2009, "Coronation Street" moved from the Wednesday slot it held for 49 years, to Thursday evenings. "Emmerdale" reverted to running just one 30-minute episode on Tuesday evenings and the other 30-minute installment was moved to Thursday evenings. "Coronation Street" has since returned to a Wednesday slot. It now airs Mondays, Wednesdays and Fridays at 19:30 and 20:30. Emmerdale airs at 19:00 every weeknight, and 20:00 on Thursdays. UK soap operas are shot on videotape in the studio using a multi-camera setup. Since the 1980s, these programs routinely