Chiefs vs. Bills Made AFC Championship Game History On Sunday

The Kansas City Chiefs and Buffalo Bills extended one of the NFL's hottest rivalries on Sunday. Fans were clearly interested in the AFC Championship Game matchup.

Kansas City advanced to the Super Bowl with a 32-29 win over Buffalo at Arrowhead Stadium. While the Bills have won their last four regular-season meetings, the Chiefs have triumphed in the previous four postseason encounters.

Sunday's game proved a massive ratings success for CBS. According to Sports Business Journal's Austin Karp, it drew the largest AFC Championship Game audience ever, with 57.4 million viewers.

The matchup bested last year's AFC title clash between the Chiefs and Baltimore Ravens, which netted 55.5 million viewers. It's the most-watched conference title game since 57.6 million saw the New York Giants defeat the San Francisco 49ers in 2012.

A vast audience witnessed a thrilling contest featuring three second-half lead changes.

Up 22-21, the Bills had a chance to extend their lead early in the fourth quarter. However, officials determined that the Chiefs stuffed Josh Allen short of the marker on a crucial fourth down, and the replay upheld the call on the field.

Patrick Mahomes responded by driving 59 yards down the field in just five plays for a touchdown and two-point conversion. The Bills answered with a game-tying touchdown on a fourth-and-goal, but Harrison Butker kicked a go-ahead field goal with 3:33 remaining.

On a pivotal fourth down, Kansas City's cornerback blitz forced Allen to launch a desperation heave that somehow landed near Dalton Kinkaid. However, the tight end couldn't make a play that Bills fans would have replayed for decades had it led to a triumph.