TV ratings: 'Big Bang Theory' leads CBS to win; NBC comedies see a bump

Fast National ratings for Thursday, Sept. 27, 2012

The lineup of premieres on CBS helped the Eye to a big win Thursday night, led by the "Big Bang Theory" premiere, which was the top show of the night. Interestingly, NBC's comedy block, which started off soft a week ago, saw a boost of almost one million viewers this week, even being up against new shows on both CBS and ABC.

The ABC premieres of "Last Resort," "Grey's Anatomy" and "Scandal" also opened to solid numbers, while "The X Factor" saw a loss of 700,000 viewers.

CBS won the night with 13.8 million viewers and an 8.5 rating/14 share in households, followed by FOX at 9.2 million, 5.4/9, ABC at 9.08 million, 5.8/9, NBC at 4.94 million, 3.2/5 and the CW at 727,000, 0.5/1.

In the adults 18-49 demographic, CBS also won with a 4.1, followed by FOX at 3.2, ABC at 2.2, NBC at 1.8 and the CW at 0.3.

Thursday hour by hour:

8 p.m.

CBS: "Big Bang Theory" premiere (15.3 million, 9.3/16 households)/ "Two and a Half Men" premiere (12.4 million, 7.7/12
FOX: "The X Factor" (9.85 million viewers, 5.9/10)
ABC: "Last Resort" premiere (9.1 million, 5.8/9)
NBC: "SNL Weekend Update Thursday" (5.4 million, 3.6/6)/"Up All Night" (4.5 million, 2.8/4)
The CW: "The Vampire Diaries" rerun (771,000, 0.6/1)

18-49 leader: "Big Bang Theory" (4.8)

9 p.m.

CBS: "Person of Interest" premiere (14.3 million, 8.8/14)
ABC: "Grey's Anatomy" premiere (11.5 million, 7.6/12)
FOX: "Glee" (5.9 million, 3.6/6)
NBC: "The Office" (5.2 million, 3.3/5)/"Parks and Recreation" (4.5 million, 2.7/4)
The CW: "The Next" (683,000, 0.5/1)

18-49 leader: "Grey's Anatomy" (4.3)

10 p.m.

CBS: "Elementary" premiere (13.3 million, 8.4/14)
ABC: "Scandal" premiere (7 million, 4.7/8)
NBC: "Rock Center with Brian Williams" (4.2 million, 2.9/5)

18-49 leader: "Elementary" (3.1)

Ratings information includes live and same-day DVR viewing. All numbers are preliminary and subject to change. Source: The Nielsen Company.