Patrick Dempsey, <I>Grey's Anatomy</i> Patrick Dempsey, Grey's Anatomy

Thursday's ratings roundup:

8 pm/ET
Survivor: Tocantins inched up slightly from its premiere to win the hour with 13.67 million total viewers. Bones cinched second with 9.5 million (down 12 percent from its fresh eppy), while Ugly Betty settled for third (7.65 mil). NBC's Earl (6.72 mil) gained 420K, but Kath & Kim (5.13 mil) scared off another 350 thou.

9 pm
CSI topped the hour with 16.85 million viewers, dropping 930K. Grey's Anatomy's scalpel-vs.-scalpel and fist-vs.-fist showdowns drummed up 15.39 mil, a week-to-week increase of 310K and the series' biggest audience since Nov. 20, 2008. (Was it just me or did Addison seem a bit, um, turned on by the boys' McDonnybrook?)

10 pm
With the Grey's crossover over, Private Practice plunged 20 percent yet still edged out Eleventh Hour — 11.37 mil to 11.23 mil. (Who took my Twitter challenge and spotted Private Practice's second, non-Anya Buffy alum?) ER delivered 7.44 mil, up 190K.