Tonight s season finale of The Walking Dead is likely to be the most-watched show in the history of cable television. You don t have to work for Nielsen to understand that The Walking Dead is a very popular show, and Sunday night s episode will be something of an event. But a deeper dive into numbers behind the show ratings success tells an even more remarkable story. After AMC bought the pilot based on Robert Kirkman s comics, the show has more than tripled its ratings in less than four years.
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