Fox reclaimed the top spot for the week in both the adults 18-34 and adults 18-49 age demos. CBS headed the average viewership and adults 25-54 averages for the week of June 29 - July 5.
I'm still patching together data from several sources, and will update the chart with the rest of the 18-34 ratings when I get them. Note that the chart includes RATINGS not VIEWERSHIP as was typical in most other weekly network ratings posts in the past.
You can see past week's broadcast network primetime weekly TV ratings results here.
(click chart for full sized image)
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.
Nielsen TV Ratings Data: ©2009 The Nielsen Company. All Rights Reserved.