Michael Schlow Cuts His Burger in Half

Radius's signature burger.

Prices, that is: We're told that Radius will sling their signature burger (Vermont cheddar, crispy onions, horseradish sauce) for a mere $9.50 every Saturday until 2013. Normally it's $19. In other juicy burger news, Harvard Square's Tasty Burger should open this weekend and will stay open until 4 a.m. [UD]