An old sitcom plot line is given a fresh new workout in this episode of All in the Family. Receiving a chain letter from superstitious Edith, Archie and Mike laugh off the "dire predictions" catalogued therein and disdainfully throw the letter away. But then, both men experiencing an uncanny streak of bad luck. Future Benson star Robert Guillaume appears as the doctor. Written by Lou Derman and Milt Josefsberg, "Chain Letter" originally aired on October 20, 1975. ~ Hal Erickson, Rovi