Nelson Franklin and Kris Marshall Nelson Franklin and Kris Marshall

Traffic Light signaled an increase this week to 4.1 million viewers — up from last week's 3.6 million, but still well below the premiere's 4.6 million two weeks ago. Fox's relationship comedy also leapt 21 percent to a 1.7 rating in the advertiser-coveted 18-to-49 demographic.

NCIS pulled in 21.3 million people, up from 19.5 million last week, and enjoyed a 22 percent increase, while Glee got about the same total viewership as the previous week, 10.5 million.

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Also in prime time's first hour Tuesday, The Biggest Loser: Couples stayed relatively flat at 6.6 million on NBC, as did No Ordinary Family on ABC with 4.8 million viewers. The CW's One Tree Hill  nabbed nearly 2 million viewers, a 25 percent increase in total viewers and among women 18 to 34.

Loser saw its usual gain in its second hour at 9/8c (8.3 million), while Fox's Raising Hope got nearly 6.2 million. ABC's V was down to 5.1 million, while the CW's Hellcats held steady at 1.7 million. Like its forebear, CBS' NCIS: Los Angeles rebounded at 9/8c, attracting nearly 18.6 million viewers.

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In prime time's final hour, CBS' The Good Wife garnered 11.5 million viewers at 10/9c, NBC's Parenthood drew 5.4 million, ABC's Primetime: What Would You Do? had nearly 4.8 million (less than the 5.2 million Detroit 1-8-7 got in the same time slot last week.

Meanwhile, these are heady days for the CW, which is up for the entire season 11 percent among 18-to-49-year-olds and 6 percent in total viewers, according to Nielsen data through Sunday.

[Update: An earlier version of this story stated that NCIS had defeated Glee in the 18-49 demo, based on preliminary figures from Nielsen. Final Tuesday ratings show that the two shows, in fact, tied with a 4.4 rating in the demo.]