>> 40 years ago my father phil robertson invented a revolutionary duck caller that changed our life forever. >> reporter: the star of the show, phil robertson. >> my happiness is killing things. >> reporter: robertson is plain spoken religious traditional sort of guy. >> here is the deal, cell phones, not for me. texting i'm like no, shut it down, turn it off. >> reporter: in the four seasons the show has been on the air, he's never been afraid to express your opinion. >> if you're wop cooks better than your mama, you got one. >> reporter: it's that unfiltered opinion that makes it the most-watched program on america. >> kids in america today are fat, lazy. >> reporter: in the january issue of "gq" magazine he said sinful, start out with homosexuality and morph out from there and sleeping with that woman and that woman and those