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 shows in Finland are YLE shows "Uusi päivä" (which has aired since 2009) and "Kotikatu" (which ran from 1995 to 2012), however these programs do not adhere to a five-episode-a-week schedule. With the advent of internet television and mobile phones, several soap operas have also been produced specifically for these platforms, including "", a spin-off of the established "EastEnders". For those produced only for the mobile phone, episodes may generally consist of about six or seven pictures and accompanying text. On September 13, 2011, TG4 launched a new 10-part online series titled, "Na Rúin" (an Internet spin-off of "Ros na