Ratings: Grey's Gets Burke Bump, Bad Teacher Worsens, Millers and Men Drop, New Idol Low

Daddy IssuesIsaiah Washington’s return to Grey’s Anatomy on Thursday night drew 8.7 million total viewers — a nine-week high for the ABC drama — and a 2.6 demo rating (per finals), up three tenths week-to-week. (Read our recap.)

Opening ABC’s night, an encore of the Grey’s/Cristina/Burke non-wedding episode did 4.1 mil an a 0.9, while Black Box closed things out with 5.4 mil/1.3, down 22 percent and two tenths from its debut.

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Elsewhere….

CBS | The Big Bang Theory (15.7 mil/4.5) was flat, The Millers (9.6 mil/2.2) fell two tenths and Two and a Half Men (9.2 mil/2.1) dropped four tenths. Bad Teacher then did 6.5 mil/1.4, dropping 17 and 32 percent from its solid debut. Elementary (7.8 mil/1.6) was flat.

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FOX | Hell’s Kitchen (4.4 mil/1.6) slipped 12 percent and a tenth, American Idol‘s controversially twisty results show (6.9 mil/1.5) fell 10 percent and three tenths week-to-week (setting a new all-time low), while Surviving Jack (3.9 mil/1.0) held steady.

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THE CW | Vampire Diaries (1.8 mil/0.8) and Reign (1.42 mil/0.5) were flat.

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NBC | The iHeart Music Radio Awards averaged 5.5 mil and a 1.7, matching NBC’s best non-Olympics, non-Sound of Music Live! Thursday of the season — and topping Idol.

Want scoop on any of the above shows? Email insideline@tvline.com and your question may be answered via Matt’s Inside Line.