CBS’s "Big Brother" saw its numbers dip from a week ago, but the show was still a comfortable No. 1 in broadcast prime and CBS still cruised to a win for the night, based on Nielsen overnights for the key 18-49 demo.

TVbytheNumbers.com reports that "Big Brother" was down 4% from last week, settling for a 2.3 average in 18-49. CBS filled out the rest of its prime-time lineup with repeat programming and coasted to a 1.7 average for the night.

Second-place ABC saw its numbers pumped up by NFL preseason coverage: "Wipeout" was up 78% from last week with a 1.6 average in the 18-49 demo; "Motive" rose from a 0.7 a week ago to a 1.3; and "Rookie Blue" shot up 56% to a 1.4.

The story carries this disclaimer: "There were numerous local pre-emptions for NFL preseason football on ABC, CBS, and NBC. CBS was pre-empted or delayed in approximately 5% of the country due to local broadcasts of NFL preseason football. Ratings are tentative, likely inflated, and subject to greater change than usual."

NBC’s only fresh program was "Hollywood Game Night," which ticked up 18% from last week’s series low to a 1.3 average in viewers 18-49.

Fox went with an all-repeat lineup and finished in fifth place.

For prime time overall, CBS’s 1.7 average led the way in the 18-49 demo, followed by ABC (1.4), Univision (1.2), NBC (1.2) and Fox (0.6). CBS took a narrow win in total viewers with 6.1 million, ahead of ABC (5.6 million), NBC (3.9 million), Univision (3.3 million) and Fox (1.7 million).