CBS and ABC finished in a close race for No. 1 in Wednesday prime time, based on Nielsen overnights for the key 18-49 demo, while a surge in viewers for "The X Factor" wasn’t enough to let Fox keep pace.

TVbytheNumbers.com reports that CBS won the night with a 2.4 average rating in viewers 18-49, edging ABC’s 2.2 average. Fox followed with a 1.7, then NBC (1.4) and Univision (1.3).

CBS was comfortably ahead in total viewers, averaging 10.6 million for prime time, followed by ABC (7.1 million), Fox (5.8 million), NBC (5.4 million) and Univision (3.6 million).

Fox’s "The X Factor" showed signs of life, adding 13% from last week to average a 1.7 in 18-49.

CBS was led by "Criminal Minds" with a 2.7 average in adults 18-49, up 17% from last week. "Survivor" slipped 4% to a 2.4 average, and "CSI" rose 6% to a 1.9.

ABC had the top-rated show on broadcast prime, as "Modern Family" returned from a hiatus to a 3.8 average in 18-49, down 3% from the show’s previous original. The rest of the lineup was up: "The Middle" gained 5% to record a 2.3 average, "Back in the Game" was up 6% with a 1.8, "Super Fun Night" surged 24% to a 2.1 and "Nashville" climbed 7% to a 1.5.

Fourth-place NBC was mostly steady, with "Revolution" remaining at last week’s series low with a 1.4 average in viewers 18-49, "Dateline" equaling last week’s 1.1 and "Law & Order: SVU" rising 7% to a 1.6.