Star Trek, season 3, episode 22 (1969)
Uhura enters the bridge: Excuse me captain Kirk, Mr. Scott…..
Lincoln: What a charming negress.
Uhura: She stares….
Lincoln: Oh, forgive me my dear, I know that in my time some used that term as a description of property.
Uhura: But why should I object to that term sir? See, in our century we’ve learned not to fear words.