Martha Lauzen Ambition has almost always been a thorny issue for television’s fictional females. When Mary Richards applied for a secretarial job at a local television station in Minneapolis on “The Mary Tyler Moore Show” in the 1970s, she ended up as an associate producer by the end of the interview. News director Lou Grant gave her the elevated title so he could pay her less, implicitly signaling that there was a price for women moving up the career ladder.