GREY'S ANATOMY - "Now or Never" - Drs. Derek Shepherd, Meredith Grey and Owen Hunt discuss patient "John Doe" in front of their other patient, Amanda, on "Grey's Anatomy," THURSDAY, MAY 14 (9:00-11:00 p.m., ET) on the ABC Television Network. PATRICK DEMPSEY, ELLEN POMPEO, SHANNON LUCIO, KEVIN MCKIDD