Of course the first full week of the Winter Olympics gave NBC a dominant sweep of the primetime ratings categories in week 22 of the broadcast season. American Idol lead Fox was a distant second. Almost all of CBS' scripted shows were in repeats for the week.
Note that the chart includes RATINGS not VIEWERS as was typical in our weekly network ratings posts prior to July, 2009.
Each rating point is a percentage of the US TV population in that demographic group and equals: 2.90 million viewers, 1.32 million adults 18-49, 0.68 million adults 18-34 and 1.24 million adults 25-54.
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.