Question: "Verna" is the twelfth episode of the fourth season of the American television comedy series "30 Rock", and the 70th overall episode of the series, which former SNL cast member guest stars as the title character of this episode, an American actress and comedian best known for her work on "Saturday Night Live", where she was a repertory player from 1986–91?
Sentence (from "List of Saturday Night Live episodes"): It premiered on NBC, a terrestrial television network, on October 11, 1975 under the title "NBC's Saturday Night".
Relevant evidence: No