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Ratings: NBC Swims Past ‘Big Brother’-Led CBS in Total Viewers With Olympic Trials

CBS tops primetime in key 18-49 demographic, however

“Big Brother” carried CBS to a second Wednesday win in as many weeks in the key 18-49 TV ratings demographic, but NBC overtook the Les Moonves-led broadcaster in total eyeballs across last night’s primetime.

NBC made the move with more U.S. Olympic Swimming Trials, coupled with a pair of new “Night Shift” hours. CBS did well in the “Big Brother” hour, but it slipped at 9 p.m. ET with a rerun and fell further at 10 o’clock with the soft “American Gothic.”

CBS was first in ratings with a 1.2 rating/5 share in the advertiser-coveted 18-49 demographic and second in total viewers with an average of 4.6 million, according to preliminary numbers. “Big Brother” at 8 p.m. ET earned a 1.8/8 and 6 million viewers. Following a repeat, “Gothic” got a 0.7/3 and 3.5 million viewers.

NBC and Fox tied for second in ratings, both with a 0.9/4. NBC was first in total viewers with 4.9 million, Fox was third with 3.14 million.

For Fox, the swimming trials at 8 p.m. ET posted a 1.2/5 and 5.7 million viewers. “The Night Shift” at 9 had a 0.8/3 and 4.6 million viewers. At 10, a second hour received a the same rating but lost about 300,000 viewers.

For Fox, “MasterChef” at 8 p.m. ET got a 1.1/5 and 3.9 million viewers. At 9, “Wayward Pines” put up a 0.8/3 and 2.3 million viewers.

ABC was fourth in ratings with a 0.8/3 and in viewers with 3.13 million, airing all reruns.

Univision was fifth in ratings with a 0.7/3 and in viewers with 1.9 million.

Telemundo was sixth in ratings with a 0.6/2 and in viewers with 1.5 million.

The CW was seventh in ratings with a 0.2/1 and in viewers with 819,000, running just repeats.