It was a great day for football on TV yesterday, as the “NFL on CBS” doubleheader delivered an 18.5 rating/32 share according to Nielsen overnights. That would make it the highest-rated broadcast of any NFL game during the 2010 season so far.

The performance by CBS even out-rated NBC’s “Sunday Night Football,” which aired in primetime and tied a ratings record of its own.

CBS aired a number of games during the doubleheader, depending on the market. Among them: the New England Patriots-Chicago Bears, the New York Jets-Miami Dolphins, Kansas City Chiefs-San Diego Chargers and Arizona Cardinals-Denver Broncos.

More information, after the jump.
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