GREY'S ANATOMY - "Great Expectations" - While rumors of the Chief's departure spread among the hospital staff, Bailey proposes the creation of a free clinic, and a Seattle Grace doctor receives a proposal of a different sort, on "Grey's Anatomy," THURSDAY, JANUARY 25 (9:00-10:01 p.m., ET) on the ABC Television Network. (ABC/SCOTT GARFIELD) KATHERINE HEIGL, T.R. KNIGHT