Ratings: Grimm's Return Scares Up Best Demo Since Debut, Largest Audience Since January

A little bit of intra-Olympics promotion coupled with a splashier, temporary Monday time slot led NBC’s Grimm to its second-highest demo rating ever, trailing only the series’ October 2011 launch.

Grimm opened Season 2 with a 2.0 rating in the 18-49 demo, up 25 percent from its freshman finale (which aired on a Friday). Its 5.7 million total viewers, meanwhile, represents the show’s largest audience since Jan. 20.

The NBC drama’s series premiere last fall played to 6.5 million viewers while scoring a 2.1 rating.

Grimm will continue to unspool new episodes on the next three Mondays, before settling back into its Fridays-at-9 slot starting Sept. 21.

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Leading into Grimm, the premiere of NBC’s Stars Earn Stripes drew a 1.7 rating, down 15 percent from American Ninja Warrior three weeks ago yet attracting a few more eyeballs (with an audience of 5.15 mil).

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Over on Fox, Hotel Hell premiered with a 1.9 demo rating, down sharply from Hell’s Kitchen‘s pre-Olympics tally but nonetheless representing the highest-rated debut of any network series this summer. HK led out of HH with a 2.7, up a tenth from its aforementioned performance.

ABC’s Bachelor Pad (4.06 mil/1.2) understandably enjoyed gains over its Olympics-impaired numbers but was down double digits from its last regular outing airing July 23; same applies to The Glass House (2.1 mil/0.7).

What were you tuned into this Monday night? (Age-old reminder: Cable numbers come in much, much later.)