Primetime Ratings: Photo Finish on Wednesday Night

NBC Tops with 3.1/8; ABC, CBS Right Behind with 3/8

It was essentially a dead heat for the ratings crown in the 18-49 demo, according to Nielsen Media Research overnight numbers for the broadcast networks.

NBC was first with a 3.1 rating/8 share, but ABC and CBS were right behind, tied for second at a 3/8. All three had all-new lineups.

In a distant fourth was Fox with a 1.4/4 for an all-repeat lineup, a time-out of sorts between its college-football-led ratings victories and next week's return of American Idol.

The CW was not too far behind Fox at a 0.9/2.

NBC's top show was Law & Order: Criminal Intent, which averaged a 3.5/10 from 10 p.m.-11 p.m. But the top show of the night was CBS' Criminal Minds at a 3.9/10 from 9 p.m.-10 p.m. ABC's top show was Supernanny at a 3.6/9 from 9 p.m.-10 p.m.

Fox aired back-to-back repeats of Kelsey Grammer sitcom Back to You and Til Death, which all averaged about that same 1.4 rating.

The CW was led by Gossip Girl, which averaged a 1.1/3, its best ratings in one month according to the network.