This Thursday's ratings recap:

8 pm/ET
Survivor topped the hour with 14.9 million total viewers, adding 600 thou from last week. Ugly Betty's wedding had 10.9 mil RSVP, a million-head gain. Behind 5th Grader was NBC's combo of Earl (7.66 mil, +360K) and 30 Rock (6.61 mil, up a Jack Donaghy hair). Smallville (4.6 mil) saw a 290K increase.

9 pm
The CSI half of the Without a Trace crossover drew 21.9 million, a 17 percent increase on CSI's previous audience. Grey's placed second (but tops in demos) with 19.3 mil (up 540 thou). The Office (8.29 mil) was down a bit, while Scrubs (6.36 mil) discharged 320K. Supernatural barely delivered 3 mil, a 280K drop.

10 pm
Tremendously jacked up by the CSI merge, Without a Trace had an audience of 21.39 mil, a 47 percent week-to-week gain. Big Shots (an inflated 8.62 mil) dipped 280K but still bested ER (which sank 650 thou to 8.42 mil).