"There are fewer studies examining the relationship between television viewing and conceptions of sex roles. Many of these studies, although not necessarily conducted as part of this ongoing research, reflect the theoretical perspective of cultivation analysis that television dominates the symbolic environment of modern life. The theory posits (1) that the more time spent watching television, the more likely conceptions of social reality will reflect what is seen on television and/or (2) that television viewing contributes to the cultivation of common perspectives among otherwise diverse respondents, i.e., mainstreaming (see, Gerbner, Gross, Morgan, & Signorielli, 1986; Morgan & Signorielli, in press). For example, in a study of 3-6-year-old children, Beuf (1974) found that those children who watched more television were more likely to stereotype occupational roles. Gross and Jeffries-Fox (1978), in a panel study of 250 8th-, 9th-, and 10th-grade children, found that television viewing was related to giving sexist responses to questions about the nature of men and women and how they are treated by society. Atkins and Miller (1975), in an experimental setting, found that children who viewed commercials in which females were cast in typically male occupations were more likely to say that this occupation was appropriate for women."
January 1, 1970
https://en.wikiquote.org/wiki/Media_and_gender