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
Indian soap opera major networks that air primetime soap operas with national wide are StarPlus, Sony Entertainment Television, Colors TV and Zee TV. Soaps affect Indian society, with regard to national integration, identity, globalisation, women, ethics and social issues in rural areas. The first Indian soap opera, "Hum Log", began as a family planning program, and although it quickly turned its focus to entertainment, it continued to embed pro-development messages which provided a model of utilizing the television serial as an "edutainment" method that was followed by countries around the world. A 2007 study of cable coming to rural India showed that it