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CBS’ “Madam Secretary” got off to a respectable start in its fourth season debut on Sunday but other shows didn’t fare as well against NBC’s “Sunday Night Football.”

“Madam Secretary” premiered at 10 p.m. to 7.1 million viewers and an 0.8 rating/3 share in the adults 18-49 demographic, according to Nielsen’s preliminary ratings. That was up 18% in viewers compared to its season-three bow, and even with year-ago benchmarks in adults 18-49 and adults 25-54 (1.2).

But CBS saw viewership tumble by double digits in the adults 18-49 demo for the second week of frosh 8 p.m. drama “Wisdom of the Crowd” (7.9 million, 1.0/3), coming out of a weaker “60 Minutes” (9.9 million, 1.1/4) and football lead-in. At 9 p.m. “NCIS: Los Angeles” (8.4 million, 1.0/3), was also down week-to-week but still ranked as the most-watched scripted program of the night.

A strong football lead-in helped Fox’s Sunday comedy block hang tough in week-to-week comparisons. The network’s 8:30 p.m. newbie “Ghosted” (3.6 million viewers, 1.4/5) was even with last week’s premiere ratings.

ABC had a tough night all around with game show “Toy Box” (1.9 million, 0.4/1) getting the night off to a weak start at 7 p.m. “Shark Tank” (4.6 million, 1.0/4), the network’s 9 p.m. anchor, was down week-to-week and the second installment of drama thriller “Ten Days in the Valley” (2.7 million, 0.4/2) fell from its underwhelming premiere to close out the night on a low note.

Reliable national ratings for “Sunday Night Football” won’t be available until alter today but preliminary numbers indicate viewership for the Kansas City Chiefs-Houston Texans game was up versus the comparable “SNF” game last year.

(Pictured: “Madam Secretary”)