In the Season 4 premiere of “Duck Dynasty,” Robertson family patriarch Phil and his wife of 48 years, Miss Kay, have a wedding ceremony in their back yard, officiated by their oldest son. They were just teens when they got hitched and couldn’t afford a party. There are no fights, no nudity, no designer gown and no other celebrities in sight, and yet nearly 12 million people tuned in. Wednesday’s premiere set the record for most-watched nonfiction series on cable ever. Compare that to the overhyped Kim Kardashian nuptials, which only had a third as many viewers (not to mention...