Growing up in Southern California, the most famous car salesman on my TV was Cal Worthington. He and his hat and his (never really a canine) "dog" Spot persuaded me, a six year old, that I need to buy a car. From him. How did he do that? In this episode of the N of Us, Cal, homemaker Betty and her Tupperware and Top Gun lead us down the two routes of the Elaboration Likelihood Model of Persuasion to find out.