This Tuesday's ratings, at a glance:

" American Idol's final performance show delivered 24.51 million total viewers, a 1.2 mil bump from last Tuesday but down 5.7 mil from a year ago. Lead-out On the Lot, vying with the Dancing with the Stars finale, premiered to just 8.97 mil - less than half of the audience retention House was getting - and not at all helped by 9:30 tune-out to the tune of four mil.

" DWTS bowed out before 22.6 mil, down 4.6 mil from its previous finale.

" Tom Selleck's latest Jesse Stone telepic pulled almost 13 mil for CBS, two mil fewer than the series' year-ago entry.

" Among scripted season-enders, NCIS put up a typical 13.88 mil; Veronica Mars' last two episodes ever* did 1.83 mil and 2.14 mil; and SVU (10.21 mil), slipping 2.3 mil, came in third at 10 pm.

* See the Ausiello Report, now, for an intriguing update on Mars' fate.