This season of ”Dancing With the Stars” may have proved to be below-average ratings wise, but its finale still put up strong numbers Tuesday, lifting ABC to victory on a night when the CBS dramas hit season lows. Fox did a bit better than its recent Tuesday average with a special two-hour ”The X Factor.”

ABC opened the night with first-year comedies ”Last Man Standing” (2.7 rating/8 share in 18-49, 9.3 million viewers overall) and ”Man Up” (1.9/5 in 18-49, 6.8 million viewers overall), which edged up week to week, according to preliminary national estimates from Nielsen. And from 9 to 11 p.m., the season finale of ”Dancing With the Stars” averaged a 4.1/11 in 18-49 and 19.5 million viewers overall, season highs for the Tuesday results show but down about 20% from last fall’s finale. It won all four of its half-hours, peaking in the 10:30 p.m. half-hour with a 4.5 demo score and 20.8 million viewers overall.

At CBS, ”NCIS” (3.5/10 in 18-49, 18.5 million viewers overall) was down more than 10% week to week but was the night’s No. 2 program, and ”NCIS: Los Angeles” followed with similar declines (3.0/8 in 18-49, 14.0 million viewers overall). Holding up a bit better week to week but still down was 10 p.m. rookie ”Unforgettable” (2.2/6 in 18-49, 10.3 million viewers overall).

Fox rested its Tuesday regulars on this holiday week, going with a special two-hour ”The X Factor” that averaged a 3.2/9 in 18-49 and 9.3 million viewers overall. Though down 18% from its showing last Wednesday, it fared about 10% better than last week’s combo of ”Glee,” ”New Girl” and ”Raising Hope.”

NBC was in line with recent weeks with ”The Biggest Loser” (2.0/5 in 18-49, 5.6 million viewers overall) and ”Parenthood” (1.9/5 in 18-49, 4.5 million viewers overall), and CW aired an original episode of ”90210” (0.6/2 in 18-49, 1.3 million viewers overall), followed by a special repeat of Monday rookie ”Hart of Dixie” (0.4/1 in 18-49, 0.9 million viewers overall).

Preliminary 18-49 averages for the night: ABC, 3.5/9; Fox, 3.2/9; CBS, 2.9/8; NBC, 1.9/5; Univision, 1.4/4; CW, 0.5/1.

In total viewers: ABC, 15.7 millon; CBS, 14.3 million; Fox, 9.3 million; NBC, 5.2 million; Univision, 3.3 million; CW, 1.1 million.