This Tuesday, as American Idol's dozen dudes averaged 29.44 million total viewers, drawing a whopping 31.1 mil from 9 to 10 pm/ET...

" NCIS (15.36 million) dropped 400K, while Gilmore Girls (four mil) slipped 310,000.

" At 9, The Unit (11.55 million) was down 700 thou and Law & Order: CI (9.37 mil) was up 800K, while Veronica Mars* (2.34 million) sank 280,000 heads to hit a new season low.

" SVU (11.94 million) dropped a mil but still topped Boston Legal (holding steady with 9.4 mil).

* UPDATE: Speaking of Mars, Ausiello has posted a fresh Q&A with last night's killed-off cast member.