* 8 pm/ET
American Idol's final Season 8 sing-off delivered 23/07 million total viewers, up 6 percent week-to-week. NCIS' season-ender (poor Ziva...) netted 16.09 mil, up 210K. Reaper's likely penultimate episode drew 1.79 mil, down 200 thou.
* 9 pm
Fox's Glee debuted to 10.75 mil 1 and needs to resume its first season, like, yesterday! Fox notes that Glee was Tuesday night's No. 1 Twitter topic, while New Directions' version of "Don't Stop Believin" emerged as the No. 2 most downloaded song on iTunes.
90210's school year came to a close with an audience of 2.09 mil.
* 10 pm
Lagging far behind DWTS, Without a Trace bowed out - for good - before a crowd of 11.32 mil, dropping 16 percent week-to-week.