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
James L. Brooks the short-lived series "Paul Sand in Friends and Lovers" in 1974. He and Burns moved on to "Rhoda", a spin-off of "Mary Tyler Moore", taking Valerie Harper's character Rhoda Morgenstern into her own show. It was well received, lasting four years and earning Brooks several Emmys. The duo's next project came in 1977 in the shape of "Lou Grant", a second "Mary Tyler Moore" spin-off, which they created along with Tinker. Unlike its source however, the series was a drama starring Edward Asner as Grant. James Brown of the Museum of Broadcast Communications said it "explore[d] a knotty issue facing