On a night when a heavy dose of repeat programming added up to some low ratings, it was a fresh episode of an NBC drama that stood out Thursday night — and not in a good way. NBC’s supernatural medical drama “Saving Hope” sank to a shocking 0.4 average rating in the key 18-49 demo, an all-time low for the series, TVbytheNumbers.com reports.

That number was down three-tenths of a ratings point from last week’s already low 0.7. Nothing else on NBC did much better, although “Rock Center” was up one-tenth from a week ago to a 0.9. Repeats of “The Office” and “Parks & Recreation” both pulled 0.6 averages, leaving NBC a distant fifth for prime time.

CBS’s all-repeat lineup won the night, with the network averaging a 1.7 in adults 18-49 for prime time, ahead of Fox (1.4), Univision (1.4), ABC (1.3) and NBC (0.6). CBS also claimed the top spot in total viewers, averaging 7.8 million to ABC’s 5.5 million, Univision’s 3.5 million, Fox’s 3.4 million and NBC’s 2.4 million.

ABC’s live “Duets” managed only a 1.0 in viewers 18-49, according to Nielsen overnights, with some adjustments still to come. ABC pulled a 1.7 for “Wipeout” and a 1.3 for “Rookie Blue” — both fresh episodes.

“The Choice” led the way on Fox with a 1.6 in 18-49, up four-tenths from last week, while “Take Me Out” achieved a 1.3 — up three-tenths from a week ago and a series high.