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 ("Goodmorning Life"), which ran from September 1993 until its cancellation in June 2006 due to low ratings. Mega Channel began producing soap operas in 1990 with the prime time serial "I Dipsa" ("The Thirst"), which ran for 102 episodes. Other daytime soaps have included "Paralliloi dromoi" (1992–1994) and its successor "Haravgi" ("Daylight", 1994–1995), both of which were cancelled due to low viewership; as well as the serials "Apagorevmeni Agapi" ("Forbidden Love"), which ran from 1998 to 2006; "Gia mia thesi ston Ilio" ("A Spot Under the Sun"), which ran from 1998 to 2002; "Filodoxies" ("Expectations"), which ran from 2002 to