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Ratings: J Lo’s ‘World of Dance’ Grows in Second Week on Wednesdays

NBC overtakes CBS and Fox for first place

NBC tangoed with CBS and Fox last night, when its “World of Dance” proved (and improved) enough for the network to land a first-place primetime finish.

Thursday’s No. 1 network can thank Fox and CBS for airing an extra rerun apiece last night, setting NBC up for a fairly easy — though tight — outright victory.

NBC was first in ratings with a 0.9 rating/4 share in the advertiser-coveted 18-49 demographic and in total viewers with an average of 4.2 million, according to preliminary numbers. The Jennifer Lopez-led dance competition, airing from 8-10 p.m., posted a 1.1/5 and 5.3 million viewers. At 10, “Reverie” settled for a 0.4/2 and 2.2 million viewers.

CBS and Fox tied for second in ratings, both with a 0.8/4. CBS was second in viewers with 3.8 million, Fox was third with 2.9 million.

For CBS, “Big Brother” at 8 landed a 1.5/8 and 5.6 million viewers. Reruns followed.

For Fox, “MasterChef” at 8 whipped up a 0.9/5 and 3.5 million viewers.

Telemundo was fourth in ratings with a 0.6/3 and fifth in viewers with 1.5 million.

ABC was fifth in ratings with a 0.5/3 and fourth in viewers with 2.3 million, airing all repeats.

Univision was sixth in ratings with a 0.4/2 and in viewers with 1.2 million.

The CW was seventh in ratings with a 0.2/1 and in viewers with 851,000. “Burden of Truth” at 8 had a 0.2/1 and 830,000 viewers. At 9, the season finale for “The Originals” received a 0.3/1 and 873,000 viewers.