<I>Law & Order: SVU</i> Law & Order: SVU

Tuesday's tallies:

8 pm/ET
American Idol's Top 13 sing-off averaged 25.24 million total viewers over its two-hour run, a gain of a mil week-to-week. Placing second was an NCIS repeat (13.33 mil). 

The Biggest Loser packed on 300K to hit 9.32 mil. Reaper (2.17 mil) dropped 8 percent from its sophomore opener.

9 pm
Trailing Idol, a repeat of The Mentalist managed 14.25 million viewers (up 12 percent from the CBS procedural's previous "encore performance"). 

10 pm
Opposite a warmed-over Without a Trace, Law & Order: SVU topped the hour with its biggest audience of the season, 11.04 million viewers (up 17 percent week-to-week).