NEW YORK -- NBC took another Monday night in broadcast primetime with a surge from "Deal or No Deal" and its runaway hit "Heroes."

"Deal or No Deal" was the night's top show in viewership while "Heroes" claimed that honor in the adults 18-49 demographic, according to preliminary estimates released Tuesday by Nielsen Media Research. "Deal or No Deal" got its second-best viewership and rating of the fall season while "Heroes" hit the second-highest rating for a new show this season behind only last week's "Heroes."

NBC's 5.1/12 in the demo had no problem beating second-place CBS' 4.4/11; CBS gave a little more competition in viewership with 13.4 million to NBC's 13.5 million. The difference came at 10 p.m., when "CSI: Miami" boosted CBS while "Studio 60 on the Sunset Strip" fell from NBC's high-flying 8 p.m. and 9 p.m. hours.

NBC won at both 8 p.m. and 9 p.m., first with "Deal or No Deal" (17.6 million, 5.2/13) and then with "Heroes" (15.5 million, 6.7/16). But CBS came back at 10 p.m. with "CSI: Miami" (16.9 million, 5.6/14) easily beat "Studio 60" (7.4 million, 3.3/8) and the second half of "The Bachelor" finale (10.9 million, 4.3/11). CBS's 9 p.m. sitcom "Two and a Half Men" averaged 15.6 million viewers and a 4.8/11 in the demo while "The New Adventures of Old Christine" (12.2 million, 3.7/8) was down a bit.