The Professional Golfers' Assn. of America Championship helped CBS earn No. 1 network of the night status, according to Nielsen.
The tournament, which ran until 9 p.m. EST, had a rating of 2.4 in the key 18-to-49-year-old demographic. With roughly 11.6 million viewers, the live sports event won the night in the key demo and overall viewership.
However, due to the long-running tournament, "Unforgettable" and "Reckless" were preempted across all markets. "60 Minutes" began at 9 p.m. EST and "Big Brother" started at 10 p.m. EST.
Ratings for the CBS programs are likely to change when time zones are taken into account.
Down 15% from last week, CBS' "Big Brother" earned a rating of 1.7 in the key demo, marking its lowest-rated Sunday edition to date in live-plus-same-day ratings. With roughly 5.3 million viewers overall, the show was the third most watched of the night and second most watched in the key demo.
Also on the network, "60 Minutes" nabbed second most watched program of the night, with 7.4 million viewers. It earned a rating of 1.4 in the key demo.
Fox and ABC tied for No. 2 most watched network in the key demo, with ratings of 0.8.
On ABC, "Wipeout," with a rating of 0.8 in the key demo, was down 20% from last week, tying its series low. "Rising Star," with a rating of 0.7, was also down 22%, marking its lowest rating to date.
With 3.6 million viewers, ABC was the No. 2 most watched network of the night overall.
Fox's annual Teen Choice Awards held even with last year at a rating of 0.8 in the key demo and roughly 2.6 million viewers.
The network also aired episodes of "The Simpsons" and "American Dad." Roughly 2.2 million people tuned in to the network overall.
An encore of "American Ninja Warrior" and a rebroadcast of "America's Got Talent" made NBC the third most watched network overall, with about 2.3 million viewers tuning in to the network.