and Soap, which broke down television barriers. Many advertising trends of the 1970s also reflected this growing social consciousness trend, such as with Coca-Cola's "Give the World a Coke" and McDonalds "You Deserve a Break" campaigns. The women's movement ushered in a slew of programming featuring strong, independent females as central characters. Most notable was The Mary Tyler Moore Show, which spawned the successful spin-offs Rhoda and Phyllis, and also resulted in Mary Tyler Moore becoming the first female to head a television production company of her own, MTM Enterprises, which churned out groundbreaking programming in the late 1970s throughout the 1990s. Women were also established portraying action characters in programs like Police Woman, Wonder Woman, The Bionic Woman, and others. Minority-centric television programming also featured prominently during the 1970s. Shows featuring African-Americans as main characters, such as Sanford and Son, Maude, The Jeffersons, Good Times, and What's Happening!! broke down barriers and became very popular. In addition, Soul Train, the brainchild of Don Cornelius, premiered in 1971 as the African-American counterpart to American Bandstand, giving a forum for soul, funk, jazz, R&B, disco, and future rap and hip hop artists to gain exposure to American audiences, consumers, music lovers, enthusiasts, and those keen on learning new dance moves. The television western, which had been very popular in the 1950s and 1960s, all but died out during the 1970s, with Bonanza, The Virginian, and Gunsmoke ending their runs. Replacing westerns were police and detective shows, a trend that would last through the 1980s. Television still had its medical shows of the 1970s, however, Emergency! was the first popular medical drama ever to feature both the paramedic program as well as the hospital emergency department, which also encouraged future people in the United States to develop their own paramedic program or hospital emergency department, and acted as an inspiration for many individuals. Marcus Welby, M.D. and Medical Center were other long-running medical dramas popular during the 1970s. 1950s nostalgia became a theme in prime time sitcoms with the Garry Marshall-produced Happy Days and its two spin-offs Laverne & Shirley and Mork & Mindy. By the mid-to-late 1970s, "jiggle television"—programs oriented toward sexual gratification and farce comedy and situations—became popular. Such programs included Charlie's Angels, The Love Boat, and perhaps the genre's most popular, Three's Company. Soap operas expanded their audiences beyond housewives with the rise of All My Children, As the