10/27/2008 05:12 am ET Updated May 25, 2011

Television Ratings Thursday: Grey's Anatomy Wins But Down 18% From Last Year

very season premiere drew a lower rating than last fall Thursday night, as returning favorites such as ABC's "Grey's Anatomy," CBS' "Survivor" and NBC's "The Office" tripped across the board.

ABC won the night as expected. Its two-hour "Grey's Anatomy" (18.3 million viewers, 7.3/18) premiere was the night's highest-rated and most watched show. Yet "Grey's" was down 18% from last fall's one-hour opener. Lead-in "Ugly Betty" (9.8 million, 3.3/9) slipped 15%.

Despite being the only network to air a repeat in its Thursday lineup, CBS managed to place second for the night. The network ran the first-ever HD edition of "Survivor" in a first-ever two-hour debut (13 million, 4.4/11), dropping 12%, but winning 8 p.m. By pushing "Survivor" into 9 p.m., the most intensely competitive hour of the week, CBS created a different DVR-busting dilemma for viewers this week, forcing some to make a tough call and vote one of their returning favorites off their duel-tuner TiVos.

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