CBS delivered a convincing primetime ratings victory on Tuesday, as vets ”NCIS” and ”NCIS: Los Angeles” joined rookie ”Unforgettable” in winning their timeslots in key demo categories. Elsewhere, Fox’s ”New Girl” again came in lower than its early-season averages, while NBC’s ”The Biggest Loser” grew a bit more this week.

According to preliminary national estimates from Nielsen, ”NCIS” (4.1 rating/11 share in adults 18-49, 20.3 million viewers overall) was easily the night’s No. 1 program in adults 18-49 as well as adults 25-54 (5.7/14) and total viewers, where it topped 20 million in same-night viewing for the first time this season. It was followed by ”NCIS: Los Angeles” (3.4/8 in 18-49, 15.9 million viewers overall), which led the 9 o’clock hour in key demos and was in line with last week. And at 10, ”Unforgettable” (2.4/7 in 18-49, 11.6 million viewers overall) thrived as the only crime drama in the hour (ABC’s ”Body of Proof” was pre-empted), edging up and ruling its timeslot.

At Fox, ”Glee” (3.1/8 in 18-49, 6.9 million viewers overall) was up a tick week to week, placing second to ”NCIS” in 18-49 while remaining in control of the younger 12-34 crowd (3.1/10). It was followed by ”New Girl” (3.5/9 in 18-49, 6.8 million viewers overall), which was in line with last week and was the night’s No. 2 show in 18-49 despite again coming in below the lofty levels it had generated with its three early-fall airings before taking a baseball-related hiatus. And at 9:30 p.m., second-year comedy ”Raising Hope” (2.1/5 in 18-49, 4.6 million viewers overall) hit a season low and fell to fourth place in 18-49.

ABC’s ”Last Man Standing” (2.6/7 in 18-49, 9.2 million viewers overall) was on par with last week, placing third in 18-49 for the 8 o’clock hour. But 8:30 p.m. half-hour ”Man Up” continues to struggle to hold onto that audience, dropping to a 1.7/5 in 18-49 and 6.2 million viewers overall. The net then rebounded at 9 p.m. with the ”Dancing With the Stars” results show (2.7/7 in 18-49, 14.9 million viewers overall), which was in line with last week, and 10 p.m. country music special ”In the Spotlight with Robin Roberts” (1.7/5 in 18-49, 8.6 million viewers overall) came in a bit lower than usual slot occupant ”Body of Proof.”

NBC’s ”The Biggest Loser” (2.4/6 in 18-49, 6.8 million viewers overall), which has been having a sub-par season, grew for a third straight week to match its delivery on the comparable night of a year ago. It was followed by ”Parenthood” (2.0/6 in 18-49, 5.2 million viewers overall), which dropped week to week but was in line with its showing of last November.

At CW, ”90210” (0.8/2 in 18-49, 1.6 million viewers overall) had its best performance since last September in several categories, rising to a 1.0/3 in adults 18-34. It was followed by rookie ”Ringer” (0.7/2 in 18-49, 1.7 million viewers overall), which was down slightly week to week.

Preliminary 18-49 averages for the night: CBS, 3.3/9; Fox, 2.9/8; NBC, 2.3/6; ABC, 2.2/6; Univision, 1.5/4; CW, 0.8/2.

In total viewers: CBS, 15.8 million; ABC, 10.4 million; Fox, 6.3 million; NBC, 6.3 million; Univision, 3.5 million; CW, 1.6 million.