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 Digest sold its magazines to Source Interlink in 2007. American Media, Inc. began publishing "Soap Opera Digest" in 2011. "Soap Opera Digest" originally published monthly, moved to triweekly issues in 1979, biweekly issues in 1980, and on April 1, 1997 started publishing weekly. The issue dates were on Tuesdays, but changed to Mondays beginning with the April 16, 2012 issue. Meredith Brown Berlin was named executive editor (the magazine's equivalent of editor-in-chief) in 1982 at the age of 26, making her the youngest editor of a national magazine at that time. Ritterman later promoted her to editor-in-chief and vice president. She