In the late 1960s, the screenwriter Norman Lear produced a television sitcom pilot for a show called All in the Family. It was a radical departure from the kind of fare then on television: it was edgy and political, and it tackled social issues that the television of the day avoided. Lear took it to ABC. They had it market-tested before four hundred carefully selected viewers at a theater in Hollywood. Viewers filled out questionnaires and turned a dial marked “very dull,” “dull,” “fair,” “good,” and “very good” as they watched the show, with their responses then translated into a score
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