From the soap and detergent commercials originally broadcast during the shows, which were aimed at women who were cleaning their house at the time of viewing; opera from the melodramatic character of the shows.
A radio or televisionserial, typically broadcast in the afternoon or evening, about the lives of melodramatic characters, which are often filled with strong emotions, highly dramatic situations and suspense.
2002, Robert C. Allen, To Be Continued...: Soap Operas Around the World, Routledge (→ISBN), page 81:
This chapter considers the growing interest in the popular Welsh-language soap opera, Pobol Y Cwm (People of the Valley), and the extent to which discourses of Welshness and definitions of cultural and national identity contribute to the appeal and longevity of the soap.
2014, Frank J. Lechner, John Boli, The Globalization Reader, John Wiley & Sons (→ISBN), page 393:
It also followed the very successful long-running soap opera, Neighbours.