Ratings: Bones Tops Time Slot As Grey's Anatomy Hits All-Time Low

With Grey’s Anatomy slipping 9 percent to an all-time low demo rating of 3.2, Fox’s Bones for the first time ever bested a fresh episode of the ABC medical drama in the coveted 18-49 demo, by holding steady with a 3.3.

And by matching its week-ago audience of 11 million viewers, Bones topped Grey’s (9.4 mil, down 5 percent week-to-week) in that measure, as well.

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The news was better for ABC come 10 pm, where Private Practice (7.23 million/2.3 rating) tacked on 5 percent more viewers to deliver its biggest audience since March 31.

Elsewhere on this highly, highly competitive Thursday:

8/7c | American Idol‘s results show drew 21.6 million viewers (up 4 percent week-to-week) and a 6.2 demo rating. Big Bang Theory (10.5 mil/3.2) held steady, while the rumored-to-be-renewed Rules Of Engagement (8 mil/2.3) gained a few percentage points on both fronts. The Community finale (3.24 mil/1.4) dipped 7 percent to tie a series low demo. The Vampire Diaries‘ season ender (2.8 mil/1.4) surged 17 percent in the demo.

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9/8c | CSI led the hour in total viewers (with 11.5 million) and gained 18 percent in the demo, though its 2.6 rating represents a series low for a finale (per TVByTheNumbers). Both The Office (6.25 mil/3.2) and Parks and Recreation (4.6 mil/2.4) dropped 8 percent in the demo. The Nikita finale held steady in total audience (with 1.94 mil viewers) but dropped 12 percent in the demo (back to a 0.7).

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10/9c | The Mentalist was the night’s most watched scripted show, matching its week ago audience of 13.8 million and 2.6 rating. Leading out of a second installment of Parks and Rec (3.6 mil/2.0), the Outsourced finale was down a smidgen in viewers (to 2.96 mil) but held steady in the demo (with a 1.5).

What did you make sure to watch this Thursday?