Archie Bunker. Jed. Laverne and Shirley. Cliff Huxtable. Throughout the entire history of American prime-time television only four sitcoms have been true blockbusters, with Nielsen ratings far above the second- and third-rated programs. Weekly, millions of Americans of every age were making a special effort to turn on the set to see what Archie, Jed, Laverne, and Cliff were doing that week. The wild popularity of these shows--All in the Family,...