American television advertising is a transitory business, predicated upon the idea that the couch-bound audience is easily bored, in possession of gnat-sized attention spans. So the idea, most of the time, is to leave us wanting more of whatever was being used to successfully sell stuff before we can tune out: ergo the brief reigns of Old Spice Guy, the Ed O’Neill-led 1-800-Collect roundtable, and those pastel-drenched, Darius Rucker-as-a-metrosexual-cowboy-featuring Burger King spots.