FRIDAY: The snow isn’t supposed to hit until Saturday, but Fox has the perfect excuse to stay in tonight and avoid the hordes descending on Safeway for bread, milk, and toilet paper. Fox is burning off the final four episodes of the brilliant, but tragically low-rated and now cancelled Arrested Development. Fans can start their vigil now, as Entertainment Weekly’s Popwatch commenters discuss their favorite episodes. It all starts at 8 p.m. Oh, and if…