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Lou (Edward Asner) hasn't got the time or the inclination to pass along a chain letter -- but that doesn't stop him from inveigling Mary (Mary Tyler Moore) into doing so. Much against her better judgment, but giving into her curiosity, Mary posts the letter. As a consequence, she ends up besieged by two of the recipients: a would-be lothario and an indefatigable cookware peddler. "Don't Break the Chain" was first broadcast on November 20, 1971.