After its record-breaking season four premier—which made it the most-watched cable reality show ever—Duck Dynasty is on its way to topping The Walking Dead. If it does, it will not just become cable’s No. 1 reality show—it’ll be cable’s all-time most popular show of any genre. That means that the Robertsons, the heavily-bearded, outspokenly Christian, proudly Louisianan family are already more culturally popular than the Sopranos, Don Draper, Walt White and pretty much any other cable TV personality ever. Happy, happy, happy …