A soap opera is an ongoing, episoic work of fiction, usually broadcast on television or radio. Programs described as soap operas have existed as an entertainment long enough for audiences to recognize them simply by the term soap. The name soap opera stems from the original dramatic serials broadcast on radio that had soap manufacturers such as Procter and Gamble, Colgate-Palmolive, and Lever Brothers as the show's sponsors. These early radio serials were broadcast in weekday daytime slots when mostly housewives would be available to listen; thus the shows were aimed at and consumed by a predominantly female audience.