9:19am PT by Michael O'Connell
TV Ratings: 'Big Brother' and More Preseason Football Drive Sunday
Ahead of time zone adjustments, Sunday evening's showing of preseason football is neck and neck with Big Brother for the night's top broadcast.
Fox's airing of the Chiefs and Panthers matchup earned a preliminary 2.0 rating among adults 18-49, while a steady Big Brother fetched a 2.1 rating in the key demo for CBS. As is custom with sports telecasts, Fox's NFL coverage will likely have an edge once final ratings come in.
Elsewhere on CBS, Reckless (0.5 adults) and Unforgettable (0.8 adults) were both even.
Wipeout (0.8 adults) fell two-tenths of a point on ABC, while Rising Star (0.8 adults) held its latest score.