The ratings battle of Monday night rages on.
NBC's powerful lineup of Deal Or No Deal and Heroes continued to dominate in the key 18 to 49-year-old demographic, but both shows were down 8 percent from last week. Heroes took a 6.1 rating in adults 18-49 and 13.6 million total viewers, according to Nielsen Research.
Fox's Prison Break and 24 both crept higher from last week's numbers. Prison Break scored 9.9 million viewers and a 4.1 rating, up 14 percent, while 24 snagged 15.3 million viewers and a 5.4 rating in 18-49s.
At 8 p.m., NBC scored a 4.8 for Deal or No Deal. Fox earned a 4.1 for Prison Break, and ABC notched a 3.2 for a repeat of Wife Swap. CBS earned a combined 2.4 for repeats of How I Met Your Mother and The Class, while the CW took a combined 1.1 for new Everybody Hates Chris and All of Us.
At 9 p.m., NBC scored a 6.1 for Heroes, with Fox at a 5.4 for 24. ABC took a 3.5 for Supernanny, and CBS earned a combined 3.2 for repeats of Two and a Half Men and The New Adventures of Old Christine. CW scored a combined 1.1 for Girlfriends and The Game.
At 10 p.m., CBS earned a 3.9 rating for a CSI: Miami repeat, while NBC took a 3.0 for Studio 60 On the Sunset Strip. ABC earned a 2.7 for What About Brian.
Overall, Fox's score edged out NBC for nightly dominance, with a 4.8 rating/12 share, and 12.0 million total average viewers; NBC, 4.6/11, 12.5 million; CBS, 3.2/8, 10.7 million; ABC, 3.1/8, 7.5 million; CW, 1.1/3, 2.4 million.