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Ratings: ‘Big Brother’ Premiere Gives CBS a Big Boost, But Not Nearly Enough to Topple ‘AGT’

NBC beats up its broadcast competition again

Good news, bad news, CBS. First, the good: “Big Brother” is back! Unfortunately, Tuesday’s season premiere was not nearly enough to take on NBC’s “America’s Got Talent.”

ABC and Fox aired all reruns last night and tied for third place with Spanish-language network Telemundo in the key adults 18-49 demographic.

NBC was first in ratings with a 1.4 rating/7 share in the advertiser-coveted 18-49 demographic and in total viewers with an average of 8.2 million, according to preliminary numbers. “AGT” from 8 p.m. to 10 p.m. scored a 1.6 rating/8 share and 10 million viewers. At 10, “Songland” posted a 0.9/5 and 4.5 million viewers.

CBS was second in ratings with a 0.7/3 and in viewers with 3.7 million. The “Big Brother” Season 21 premiere at 8 landed a 1.2/7 and 4.9 million viewers. Following a rerun, “Blood & Treasure” at 10 had a 0.4/2 and 3.2 million viewers.

ABC, Fox and Telemundo tied for third in ratings, each with a 0.4/2.

ABC was third in viewers with 1.9 million, Fox was fourth with 1.7 million and Telemundo was fifth with 1.2 million. (Reminder: ABC and Fox both stacked their primetime blocks with encores.)

Univision was sixth in ratings with a 0.3/2 and in viewers with 1.1 million.

The CW was seventh in ratings with a 0.2/1 and in viewers with 592,000. Following a repeat, “The 100” at 9 settled for a 0.2/1 and 632,000 viewers.