The Tony Awards can send a surge of business to a Broadway show's ticket booth, but the absence of the awards can also mean posting closing notices. How thin are the financial margins for Broadway shows? What does it take to keep a show operating? And when does a financial hit become a financial boom? Pat Kiernan speaks with NY1's Frank DiLella and two Tony Award winners, Warren Leight and Ken Davenport, about the economics of the Great White Way.