GREY'S ANATOMY - "Here Comes the Flood" - George tries to take his residency exam, but a leaky pipe might have other ideas, on "Grey's Anatomy," THURSDAY, OCTOBER 9 (9:00-10:01 p.m., ET) on the ABC Television Network. (ABC/DANNY FELD) JAMES PICKENS JR., NELSON MASHITA, T.R. KNIGHT