Mary Tyler Moore pivotal one-hour musical special called "Dick Van Dyke and the Other Woman", Moore and husband Grant Tinker successfully pitched a sitcom centered on Moore to CBS. "The Mary Tyler Moore Show" is a half-hour newsroom sitcom featuring Ed Asner as her gruff boss Lou Grant. Moore's show proved so popular that three other regular characters, Valerie Harper as Rhoda Morgenstern, Cloris Leachman as Phyllis Lindstrom and Ed Asner as Lou Grant were also spun off into their own series. The premise of the single working woman's life, alternating during the program between work and home, became a television staple. After
1974–75 United States network television schedule on CBS from September 1974 to June 1975. Note: "Dan August" consisted of reruns of the 1970-1971 ABC series. 1974–75 United States network television schedule This was the television schedule on all three commercial United States television networks for the fall season beginning in September 1974. All times are Eastern and Pacific, with a few exceptions, such as "Monday Night Football". New fall series are highlighted in bold. Series ending their original runs are in "italics". Each of the 30 highest-rated shows is listed with its rank and rating as determined by Nielsen Media Research. PBS, the Public Broadcasting Service,