Fox dramas ”House” and ”Alcatraz” fell off some in their second week as a Monday combo, but they lifted the net to victory on a night in which CBS aired repeats. Still, the Eye’s ”Two and a Half Men” ruled as the top-rated program.

According to preliminary national estimates from Nielsen, ”House” opened the night with a 2.8 rating/8 share in adults 18-49 and 8.6 million viewers overall, winning its hour in all key categories despite a 10% week-to-week decline. And at 9, ”Alcatraz” (2.7/7 in 18-49, 8.3 million viewers overall) also saw a 10% decline from the previous week but is still looking good in its third week and appears to be a nice fit with its lead-in. It was neck and neck with ABC and CBS for the hour’s lead in 18-49 and won its hour in men 18-49 (2.6/7).

CBS again impressed by ranking a competitive second in both 18-49 and 25-54 on a night when it aired repeats of its regular Monday series: ”How I Met Your Mother” (2.4/7 in 18-49, 7.3 million viewers overall), ”2 Broke Girls” (2.7/7 in 18-49, 7.8 million viewers overall), ”Two and a Half Men” (3.0/7 in 18-49, 10.0 million viewers overall), ”Mike and Molly” (2.3/5 in 18-49, 8.5 million viewers overall) and ”Hawaii Five-0” (1.7/5 in 18-49, 7.3 million viewers overall). ”Men” was Monday’s No. 1 show in 18-49, 25-54 and total viewers, and ”Hawaii” led the broadcast networks in the 10 o’clock hour.

At ABC, ”The Bachelor” (2.6/7 in 18-49, 8.1 million viewers overall) was down a tick week to week but still logged its second best scores of the season. It was followed by ”Castle” (1.4/4 in 18-49, 6.7 million viewers overall), which was on the high side for a repeat.

NBC opened with the finale of gameshow ”Who’s Still Standing” (1.7/5 in 18-49, 6.6 million viewers overall), which matched or set season highs and figures to return at some point for the network. It was followed by a repeat of ”Fear Factor” (1.5/4 in 18-49, 4.0 million viewers overall) and an original installment of newsmag ”Rock Center” (0.8/2 in 18-49, 3.3 million viewers overall).

At CW, the 100th episode of ”Gossip Girl” resulted in higher ratings (0.7/2 in 18-49, 1.4 million viewers overall), racking up the show’s second largest audience of the season. Also up week to week was rookie 9 p.m. drama ”Hart of Dixie” (0.6/1 in 18-49, 1.5 million viewers overall).

Preliminary 18-49 averages for the night: Fox, 2.8/7; CBS, 2.3/6; ABC, 2.2/6; Univision, 1.5/4; NBC, 1.3/3; CW, 0.6/2.

In total viewers: Fox, 8.5 million; CBS, 8.0 million; ABC, 7.6 million; NBC, 4.6 million; Univision, 3.5 million; CW, 1.4 million.