Prime Time Preliminary Wednesday Ratings

The CW's "America's Next Top Model" showed an increase week-to-week in several demographics, including women 18- to 34-years-old with a 3.4 rating/10 share, up 13% and adults 18- to 49-years-old with a 2.0/6, an increase of 18%. CBS' "Greatest American Dog" finished its summer run on par with its average. Fox's debut of "Do Not Disturb" launched to fair numbers with a 2.0/5. NBC finished the night in first by a tenth of a ratings point with a 2.6/7.

	8	8:30	9	9:30	10	10:30
1.6 / 4	Wife Swap 1.4 / 4 4 mil		Supernanny 1.2 / 3 3.3 mil		20/20 2.0 / 6 6 mil
1.7 / 5	Greatest American Dog 1.6 / 5 5.5 mil		Criminal Minds 1.8 / 5 8.3 mil		CSI: NY 1.7 / 5 7.5 mil
2.5 / 7	Bones 2.9 / 9 8.9 mil		'Til Death 2.4/ 7 6.4 mil	Do Not Disturb 2.0/ 5 4.9 mil	No Programming
2.6 / 7	America's Got Talent 2.8 / 8 11.5 mil				Law & Order: CI 2.1 / 6 7.2 mil
1.5 / 4	America's Next Top Model 2.0 / 6 3.8 mil		90210 1.2 / 3 2.3 mil		No Programming

Source: Nielsen Media Research

*Ratings are specified in the 18-to 49-year-old demographic and viewership in P2+.

A note about ratings: Ratings are expressed as percentages of Nielsen's estimated 112.8 million U.S. television households. The first number, the rating, is a percentage of households tuned into a specific program at a specific time.

The second number, the share, is a percentage of households with televisions in use tuned into that same program. For example, if a show obtains a 10.2/16, this means that 10.2% of all U.S. households tuned into the program at some point during the broadcast. Meanwhile, 16% of all households watching television during the time period viewed the program at some point. Ratings are broken down further by demographic, as networks sell advertising time based on the makeup of the audience.