THE NFL ON CBS’s coverage on Sunday, Dec. 20, highlighted by the national window (4:30 PM, ET) featuring Denver-Pittsburgh, earned the highest-rated NFL game of the day on any network, with an average overnight household rating/share of 15.9/29, +8% from last year’s 14.7/27 (Indianapolis-Dallas,  Buffalo-Oakland; 12/21/14) in the metered markets.  The other games featured in the window were Miami-San Diego and Cincinnati-San Francisco.