CBS comedy ”The Big Bang Theory” remained Thursday’s standout performer this week, easily ruling as the No. 1 program while ABC’s fall finale of ”Grey’s Anatomy” saw a nice uptick to stand as the top-rated drama. Fox still won the night, though ”The X Factor” and ”Bones” declined week to week.

According to preliminary national estimates from Nielsen, Fox saw both ”The X Factor” (3.3/9 in 18-49, 10.2 million viewers overall) and ”Bones” (2.7/7 in 18-94, 8.8 million viewers overall) drop from the previous week, with the crime drama sliding more. Each ranked second in their hour but Fox’s nightly average beat out the three-hour averages of its rivals, and the net has now won eight straight Thursdays to start the season (including two with the World Series).

ABC aired what could be the last scheduled episode of ”Charlie’s Angels” (1.1/3 in 18-49, 5.1 million viewers overall), a show that was effectively canceled last month but allowed to play out its produced episodes. The show’s sixth-place finish among the broadcasters didn’t seem to affect 9 p.m. anchor ”Grey’s Anatomy” (4.0/10 in 18-49, 11.2 million viewers overall), which was up more than 10% week to week to deliver its best demo score since its season premiere and its largest overall audience since last spring. Also picking up steam is 10 p.m. drama ”Private Practice” (2.9/8 in 18-49, 7.7 million viewers overall), which was up week to week in advance of next week’s two-hour episode.

CBS dominated Thursday’s opening half-hour with ”The Big Bang Theory” (5.2/15 in 18-49, 15.7 million viewers overall), which was down just slightly from last week’s record high in the timeslot. It was followed by ”Rules of Engagement” (3.6/9 in 18-49, 11.8 million viewers overall), which was in line with last week and led its timeslot in all categories (tied with Fox in 18-49). The Eye then aired repeats of ”Person of Interest” (2.0/5 in 18-49, 9.1 million viewers overall) and ”The Mentalist” (1.9/5 in 18-49, 10.0 million viewers overall). Despite the two repeats, CBS was competitive in 18-49 and won in adults 25-54 and total viewers.

Univision moved up to fourth on the night with its three-hour telecast of the Latin Grammy Awards, which averaged a 2.2/6 in adults 18-49 and 5.2 million viewers overall.

NBC had another quiet Thursday, starting with ”Community” (1.5/4 in 18-49, 3.5 million viewers overall) and ”Parks and Recreation” (1.8/5 in 18-49, 3.6 million viewers overall). Its top show remains ”The Office” (3.0/7 in 18-49, 5.9 million viewers overall), down a bit week to week, and rookie 9:30 p.m. comedy ”Whitney” is hanging in there (2.1/5 in 18-49, 4.3 million viewers overall), matching last week’s score despite the slightly smaller lead-in. And at 10, ”Prime Suspect” (1.2/3 in 18-49, 4.8 million viewers overall) continues to struggle, on par with last week and seeing no bump in spite of CBS airing a repeat of its crime drama.

Off their strong showings of last week, CW was down a bit with both ”The Vampire Diaries” (1.4/4 in 18-49, 3.3 million viewers overall) and ”The Secret Circle” (0.8/2 in 18-49, 2.2 million viewers overall), with the former again beating ABC’s ”Charlie’s Angels” in 18-49 and tying the NBC comedies for third in persons 12-34 (1.5/5). ”Vampire” drew its second largest overall audience of the fall.

Preliminary 18-49 averages for the night: Fox, 3.0/8; CBS, 2.8/7; ABC, 2.7/7; Univision, 2.2/6; NBC, 1.8/5; CW, 1.1/3.

In total viewers: CBS, 10.9 million; Fox, 9.5 million; ABC, 8.0 million; Univision, 5.2 million; NBC, 4.5 million; CW, 2.7 million.