NBC scored a win in the prime-time ratings Tuesday night, with “The Voice” carrying much of the load and new series “Take It All” continuing to show strength, based on Nielsen overnights for the key 18-49 demo.

TVbytheNumbers.com reports that “The Voice” was the top-rated show of the night with a 3.5 average rating in viewers 18-49 — even with a week earlier. “Take It All” delivered a 2.3, gaining on the 2.2 it had for its premiere one night earlier. “Parenthood,” meanwhile, did its part, rising 11% from a week ago to a 2.0.

CBS’s drama lineup was down from the previous airing of original episodes back on Nov. 27. “NCIS” dipped 22% to a 2.8 average in the 18-49 demo; “NCIS: Los Angeles” fell to a 2.6, down from a 2.9; and “Vegas” dipped 6% to a 1.5.

Fox and ABC came in behind Spanish-language Univision. Fox’s originals were mostly up, with “Raising Hope” rising 21% from last week to a 1.7 and “The Mindy Project” up 8% to a 1.4, while “New Girl” was steady with last week, delivering a 2.0.

ABC, which finished fifth in the key demo for prime time overall, was either even or down. The holiday special “Santa Claus Is Comin’ to Town” managed a 1.7 in 18-49, 23% below its year-ago performance (Thursday, Dec. 1, 2011). “Don’t Trust the B” was off 17% from last week with a 1.0; “Happy Endings” was even with a 1.3; and “Private Practice” equaled a week ago with a 1.4.

For prime time as a whole, NBC averaged a 2.6 in viewers 18-49 to lead CBS (2.3 average), Univision (1.6), Fox (1.5) and ABC (1.3). CBS was a big winner in total viewers, averaging 14.3 million to 8.1 million for NBC, 4.1 million for ABC, 3.8 million for Univision and 3.4 million for Fox.