In his HBO sketch series “Life, Larry and the Pursuit of Unhappiness,” Larry David travels throughout history, inserting his stubborn and curmudgeonly self into America’s most pivotal moments. “From the very beginning, my dream was to close the book on the tan suit once and for all,” Lewis says. Obama obliges, and tries on the lighter suit, causing David to deliver his classic, “prettay good… prettay… prettay… prettay… prettay good.” Schaffer, who has worked with David since the “Seinfeld” days, was amused by watching Obama give the septuagenarian comedian notes. “You’re just sitting in the Oval Office with President Obama, hearing him talk about stuff,” he says.