TV Ratings: 'Big Bang Theory,' 'Grey's Anatomy' Hit Lows

Both series record their smallest 18-49 ratings ever on Thursday.
Michael Yarish/Warner Bros
'The Big Bang Theory'

Thursday's two top shows suffered ratings lows, as The Big Bang Theory and Grey's Anatomy both drew their smallest adults 18-49 numbers ever.

The Big Bang Theory led the night across the board, but the CBS comedy's 1.8 rating among adults 18-49 was a series low, down 0.1 from last week's fast nationals (it adjusted up to 2.0 in the finals). Its total audience of 11.17 million was also a season low.

Mom also hit a low at 1.0 in adults 18-49. Life in Pieces opened its fourth season with two episodes that drew 1.0 and 0.8 ratings in the demo, on par with where the show ended last season. SWAT (0.8) improved slightly on its last episode two weeks ago.

Grey's Anatomy fell 0.3 to a series-low 1.2 in adults 18-49. On the bright(ish) side for ABC, Station 19 (0.9) and For the People (0.5) both held steady.

At Fox, the next-to-last episode of Gotham drew a 0.6 in the demo, even with its last episode on March 21. The Orville also posted a 0.6, steady with last week.

NBC's Superstore (0.9, tying its season high), AP Bio (a seventh consecutive 0.5) and Abby's (0.4) all matched their week-ago numbers. Brooklyn Nine-Nine, however, slipped a little to 0.5, tying its season low. Law & Order: SVU aired a repeat at 10 p.m.

Supernatural (0.4) and In the Dark (0.2) were likewise steady on The CW.

CBS was the only network to get above a 1.0 in primetime, averaging 1.1. ABC finished second at 0.8, followed by Fox, 0.6, and NBC, 0.5. Telemundo averaged 0.4 and The CW and Univision tied at 0.3.

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