Thursday night's tight ratings race wound up with CBS's CSI: Crime Scene Investigation once again dominating in the overall household category with a 12.3 rating and a 19 share. But ABC's Grey's Anatomy was close behind in the same 9:00 p.m. hour with a 12.1/18 and actually came out ahead among adult viewers 18-49. CBS led in every half-hour throughout the night among overall viewers, beginning at 8:00 p.m. with Survivor and ending at 10:00 p.m. with Without a Trace.