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 The Whore"), which premiered in October 2010 and CyBC's "Stin Akri Tu Paradisou" ("At The Heaven's Edge"), which premiered in 2007. The most successful weekdaily soap was "Aigia Fuxia", which aired on ANT1 Cyprus from 2008 to 2010. The only daily Finnish soap opera so far is "Salatut elämät" ("Secret Lives"), which has achieved popularity in Finland since its 1999 debut on MTV3. It focuses on the lives of people along the imaginary Pihlajakatu street in Helsinki. The show has also spawned several Internet spin-off series and a film based on the show that was released in 2012. Other soap-like