Though NBC had a tiny bit of Brett Favre with its Sunday Night Football preseason game, Fox had two national games last week (Thursday & Friday) and edged out NBC with adults 18-49 for the week by an average of 120,000 viewers in prime-time. Fox didn't have a single program in the top 10 with adults 18-49, but the extra football and much better Saturday night performance were enough for Fox to come out on top. CBS had the most viewers for the week.
The network's average viewership is now charted in millions of viewers, just like we report all other average viewership information on the site, not in viewership rating. I couldn't figure out a way to keep the same look to the chart and create two different axes, so I eliminated the units label from the vertical axis entirely, just pay attention to the numbers themselves and note the units (million viewers on the left, rating on the right) below the bars.
Note that the chart includes both AVERAGE VIEWERSHIP (on the left side) and ADULTS 18-49 RATINGS (on the right) using the same vertical axis scale.
Each adults 18-49 rating point is a percentage of the adults 18-49 US TV population in that demographic group and equals 1.32 million adults 18-49.
You can see past week's broadcast network primetime weekly TV ratings results here.
Nielsen TV Ratings Data: ©2010 The Nielsen Company. All Rights Reserved.