On a night that saw CBS’ top-rated “NCIS” in repeat, CW’s “The Flash” rose week to week to win its Tuesday hour in some key demos, while NBC prevailed late with its combo of “Chicago Med” and “Chicago Fire.” It remained slow going for ABC’s “Agent Carter” in its second week back, while Fox’s comedy block put up more low numbers opposite the lightest competition it will face.

According to preliminary national estimates from Nielsen, “The Flash” (1.4 rating/5 share in adults 18-49, 3.7 million viewers overall) tied with “NCIS” for 8 o’clock hour lead in 18-49 — just a tenth off its season high — while winning outright among the broadcasters in adults 18-34 (1.2/5), most key male demos as well as teens 12-17 (0.9/5). It was followed by a special repeat of last Thursday’s premiere of “DC’s Legends of Tomorrow” (0.6/2 in 18-49, 1.7 million viewers overall), which was about in line with the 18-49 season average of “iZombie” originals in the timeslot.

NBC, which won Tuesday in 18-49 and 25-54, got another serviceable number at 8 p.m. from “Hollywood Game Night” (1.2/4 in 18-49, 4.5 million viewers overall) — down a tenth from last week’s season high in the demo and off just 3% from last week’s season high in total viewers (4.64 million). The net picked up from there with “Chicago Med” (1.6/5 in 18-49, 7.5 million viewers overall), which built 33% (0.4) on its lead-in and led its hour in key demos, and “Chicago Fire” (1.8/6 in 18-49, 8.4 million viewers overall), which swept the 10 o’clock hour. Both “Chicago” shows matched their average of last week.

ABC again finished fifth among the English-language broadcasters, as “Marvel’s Agent Carter” (0.9/3 in 18-49, 2.9 million viewers overall) was at least able to match last week’s low premiere score; in “live plus-3” estimates for last week, “Carter” grew 45% in 18-49 (to 1.33 rating) and 40% in total viewers (to 4.44 million). The premiere of short-run alternative series “What Would You Do” did little at 10 p.m. (0.7/2 in 18-49, 2.6 million viewers overall), down from the 1.0 or so it averaged on Fridays following “Shark Tank” repeats last summer. Kicking off the night were repeats of “Fresh Off the Boat” (0.9/3 in 18-49, 3.5 million viewers overall) and “The Muppets” (0.6/2 in 18-49, 2.2 million viewers overall), which are back in original next week.

At Fox, “New Girl” (1.2/4 in 18-49, 2.9 million viewers overall) edged down a little more and has cooled off since its return a few weeks ago. It was followed by a steady “Grandfathered” (0.9/3 in 18-49, 2.5 million viewers overall) and slight downticks for “Brooklyn Nine-Nine” (1.0/3 in 18-49, 2.3 million viewers overall) and “The Grinder” (0.7/2 in 18-49, 2.0 million viewers overall). Fox had hoped to pick up some comedy viewers at a time when NBC’s “The Voice” is on hiatus, but that has yet to happen.

CBS was second in demos and dominant in total viewers with repeats of Tuesday regulars “NCIS” (1.4/5 in 18-49, 11.9 million viewers overall), “NCIS: New Orleans” (1.2/4 in 18-49, 9.1 million viewers overall) and “Limitless” (0.8/3 in 18-49, 4.6 million viewers overall).