Archie Bunker, George Jefferson, Maude--the television sitcom world of the 1970s was peopled by the creations of Norman Lear. Beginning in 1971 with the premier of All in the Family, Lear's work gave sitcoms a new face and a new style. No longer were families perfect and lives in order. Mostly blue-collar workers and their families, Lear's characters argued, struggled, uttered sometimes shocking opinions and had no problem contributing...