'Grey's Anatomy' leads ABC to Thurs. win


NEW YORK -- A two-hour episode of "Grey's Anatomy" was the big winner in primetime Thursday, leading ABC to a win in viewership and the adults 18-49 demographic.

"Grey's Anatomy" averaged 21 million viewers and a 9.0 rating/24 share in adults 18-49, according to preliminary estimates released Friday by Nielsen Media Research. Viewership peaked at 9:30 p.m with 21.5 million viewers.

"CSI" averaged 18.9 million viewers and a 5.5/14 in the demo in the 9 p.m. hore for CBS. "Grey's Anatomy" won by a walk at 10 p.m. against CBS' "Shark" (12.6 million, 3.2/8). NBC's "ER" (8 million, 3.2/8) needed emergency ratings treatment.

CBS' "Survivor" (13.7 million, 4.5/14) won the 8 p.m. hour against ABC's "Ugly Betty" (10.7 million, 3.6/11) and Fox's "Are You Smarter Than a Fifth Grader?" (8.6 million, 2.9/9).

NBC's averages were difficult to determine between 8 p.m. and 10 p.m. with extended versions of "My Name Is Earl," "The Office" and "Scrubs."

Nightly averages: ABC (17.5 million, 7.2/20); CBS (15.1 million, 4.4/12); NBC (7 million, 3.1/9); Fox (6.5 million, 2.4/7) and The CW (3.3 million, 1.4/4).