Summer staple “Big Brother” won a quiet Wednesday night for CBS, but the reality juggernaut couldn’t boost the premiere of murder mystery “American Gothic.” The two-hour “Big Brother” opener scored a 1.8 rating in the adults 18-49 demographic, drawing 6.1 million viewers, but “Gothic” shed much of its lead-in, ending up with a 0.7 rating and 3.5 million in the 10 p.m. hour.

In a night littered with repeats, a new episode of Fox’s “MasterChef” was down two-tenths from last week’s outing against “Big Brother,” earning a 1.0 rating and 3.7 million viewers at 8 p.m., followed by “Wayward Pines,” which matched last week’s 0.7 demo score and drew 2.4 million watchers.

NBC’s “Night Shift” followed a repeat of “American Ninja Warrior” with a 0.9 rating in adults 18-49 and 4.3 million viewers, down a tenth from last week.

CBS won the night overall with an average 1.5 demo score and 5.3 million viewers, followed by NBC with a 1.0 rating and 3.8 million tuned in. ABC notched a 0.8 with a night of repeats and 3.1 million viewers, while Fox nabbed a 0.8 and 3 million viewers. The CW’s repeats of “Arrow” and “Supernatural” earned a 0.3 in adults 18-49 and 0.8 million viewers.