William Petersen and Marg Helgenberger by Robert Voets/CBS William Petersen and Marg Helgenberger by Robert Voets/CBS

Thursday's tallies:

8 pm/ET
Survivor topped the hour with 12.85 million total viewers. Trailing 5th Grader, My Name Is Earl placed third, returning to a typical audience of 7.49 mil. Miss Guided shed another 22 percent week-to-week, slipping to 4.56 mil.

9 pm
CSI was welcomed back by 20.4 million viewers, a significant bump from its last fresh outing and the series' biggest audience since Nov. 15, when Sara said, "Sayonara."

10 pm
Without a Trace drew 15.4 mil, four percent over its season-to-date average. Eli Stone did 5.22, dropping 20 percent.

Use our Returning Favorites Guide to get preview for Ghost Whisperer, Numbers and Battlestar Galactica, all of which come back tonight!