GREY'S ANATOMY - "17 Seconds" - Finn gives a health update on Doc, Meredith is assigned to work with Callie for the day while George gets paired with Derek, and Burke and Izzie continue to try to find a heart for Denny, on part one of the season finale of "Grey's Anatomy," SUNDAY, MAY 14 (10:00-11:00 p.m., ET) on the ABC Television Network. (ABC/BYRON COHEN) JEFFREY DEAN MORGAN, KATHERINE HEIGL