'Brother' ties with previous high of season

September 01, 2007 CBS' "Big Brother" tied its highest ratings so far this season in the adults 18-49 demographic in Thursday's primetime. The preliminary ratings from Nielsen Media Research are particularly unreliable with football-related pre-emptions on CBS and NBC in about 15% of the U.S. But CBS probably won the night in both viewership and the adults 18-49 demographic, with the other networks further behind. CBS started with a "Big Brother" that averaged 9.4 million viewers and a 3.2 rating, 10 share in adults 18-49 while NBC came in second in the demo with repeat episodes of "My Name Is Earl" (6.4 million, 2.2/7) and "30 Rock" (5.6 million, 2.0/6) while a repeat "Are You Smarter Than a Fifth Grader" (6 million, 2.0/6) did OK for Fox.

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