Owain Yeoman and Simon Baker, The Mentalist Owain Yeoman and Simon Baker, The Mentalist

Tuesday's tallies:

8 pm/ET
American Idol won the hour this week with 24.5 million total viewers, a drop of 1.8 mil from its last Tuesday outing. NCIS secured second with 18 million, down a mil. Trailing the first hour of The Biggest Loser (9.6 mil) and the Charlie Brown Valentine's Day special (4.77 mil), 90210 matched last week's 2.4 mil.

9 pm
The Mentalist surged 9 percent from its last fresh episode to deliver 19.7 million viewers, a new all-time high for the freshman drama. Behind the back end of Biggest Loser (11 mil), Fringe fell 20 percent to 10.45 mil. Scrubs (4.42 mil) dropped 390K; Privileged's penultimate episode (1.51 mil) dipped 200 thou.

10 pm
Without a Trace topped the hour with 14.55 million viewers, up 21 percent week-to-week. It was followed by Dateline (11.3 mil) and this week's relocated True Beauty (an ugly 3.8 mil).