Peyton Manning's debut for the Broncos' in Denver's victory over Pittsburgh on Sunday night earned NBC an 18.0 overnight rating, marking the network's best regular-season NFL primetime overnight rating ever, according to the Sports Business Daily.
That topped the 17.7 overnight rating for the Vikings-Saints regular-season opener in 2010, and was the NFL's best regular-season primetime rating in 15 years.
FOX earned a 17.2 overnight for its national NFL window featuring the Redskins' upset of the Saints in 56 percent of the markets, according to the Daily. That was the best Week 1 early window in 11 years.
On the flip side, CBS' single-header early window rating of 10.4 was down 2.0 percent from last season.