Primetime Ratings: Return of NFL Drives NBC to Sunday Win

'Unforgettable' dips to series low

The first NFL action of the 2013 season (albeit preseason) drove NBC to win Sunday with an overall 2.9 rating/9 share, with adults 18-49, according to Nielsen overnight numbers.

The Hall of Fame game between the Miami Dolphins and Dallas Cowboys drew a 6.7 overnight household rating, down a tenth from NBC's first preseason game last year. Final numbers will be released later Monday.

CBS was in second with a 1.3/4. Unforgettable dipped 8% from last week's premiere to a series-low 1.2. Big Brother was down 4% to a 2.2.

The premiere of ABC's Secret Millionaire drew a 1.2, down 20% from last summer's debut. Whodunnit fell 9% to a 1.0. ABC took fourth, behind Fox's repeats.