Part of Kavner's contract says that she will never have to promote The Simpsons on video and she rarely performs Marge's voice in public because she believes it " destroys the illusion.

Part of Kavner's contract says that she will never have to promote The Simpsons on video and she rarely performs Marge's voice in public because she believes it " destroys the illusion.

Part of Kavner's contract says that she will never have to promote The Simpsons on video because she does not want to " destroy the illusion for children ".

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