With two of the top three programs on Thursday night in adults 18 to 49, NBC won the first night of the February sweeps in the demo, but CBS was able to win the night in total viewers.

The top-rated show in the demo for the night went to CBS’s “CSI,” which scored an 8.9 rating, according to Nielsen Media Research. NBC’s “ER” was a close second with an 8.8, followed by NBC’s 9 p.m. reality entry “The Apprentice 3” (7.2) and ABC’s two-hour “Happy Days 30th Anniversary Special” (6.2).

A repeat of “CSI” at 8 p.m. scored a 3.6 in the demo, up 28 percent from last week’s repeat of “Without a Trace” in the time slot, and up 38 percent from a Jan. 20 original episode of the reality series “Wickedly Perfect.”

In adults 18 to 49 NBC won the night with a 6.9, followed by CBS (6.2), ABC (5.2), Fox (2.4), UPN (1.8) and The WB (0.9).

CBS took Thursday in total viewers, garnering 18.54 million, followed by ABC (16.22 million), NBC (14.31 million), Fox (5.32 million), UPN (4.73 million), and The WB (2.53 million).