January 15 afternoon broadcast on Fox of the Green Bay Packers vs. Dallas Cowboys game was the biggest, picking up an average audience of 48.5 million viewers, according to The Hollywood Reporter.That makes it the most-watched US NFL broadcast since the Super Bowl in February 2016. The figure peaked at 62.4 million viewers when the Cowboys tied the game at the end, around 7:45 PM ET.
It was an amazing game that came down to the last play, with the Packers sealing the victory with a 51-year field goal kick by Mason Crosby.
The second game on Sunday, the AFC matchup between the Pittsburgh Steelers and the Kansas City Chiefs on NBC, also drew huge numbers. It averaged 37.1 million viewers, peaking at 39.1 million. It ended up being the most-watched primetime NFL Wild Card or Divisional Playoff matchup. This was also a close game, with the Steelers getting the win 18-16 from six field goals and no touchdowns.
The AFC and NFC Championship games between the New England Patriots and the Pittsburgh Steelers and the Green Bay Packers and the Atlanta Falcons are coming up this Sunday, January 22.