Nearly 40 years after launching Samuel Adams Boston Lager, a beer that helped to usher in a new era of brewing in the United States, the Boston Beer Company is announcing the widespread launch of a “remastered” recipe through a new Super Bowl commercial. A 60-second version of the ad was made public on Monday. It features comedian Lenny Clarke and former Celtics player Kevin Garnett. The ad’s theme is imagining a “Brighter Boston,” where people don’t fight over parking spaces, echoing the company’s change to the Samuel Adams recipe.