 Keith Olbermann, then host of MSNBC's "Countdown", was named as another co-host.In addition, Costas and Collinsworth hosted the halftime show for the Georgia Tech–Notre Dame game on September 1, 2007; this turned out to be a one-shot promotional appearance.For the 2013 season (from September 23 to December 15, 2013), "Football Night in America" averaged 4.123 million viewers between 7