How’s NBC Today show weatherman Al Roker going to keep that boyish figure? Roker overnighted here to push Tuesday’s premiere of the NBC10 10! show’s new studio. Upon arrival Monday, he had dinner at Rittenhouse Square’s Barclay Prime, and chef Jim Locasio had one of the steakhouse’s signature $100 cheesesteaks sent out. The next day, Locasio showed up at Today’s setup outside the Art Museum for a bit on cheesesteaks – and came bearing another $100 cheesesteak. Also on camera were Ruth Hirshey, bringing cheesesteak spring rolls from chef Martin Hamann at the Four Seasons Hotel; Rick Olivieri from Rick’s Philly Steaks in Reading Terminal Market; and foodie Elizabeth Fiend, who had her homespun vegetarian Cheese Fake. Roker’s favorite? He “ummed” a lot. Ever the diplomat, he didn’t say.