Interestingly enough, Kevin Harlan and Devin McCourty, calling the game for Westwood One Radio, also said there was a flag on the play, with McCourty speculating that it was for Bills offensive lineman Dion Dawkins taking his helmet off.

For a brief second after Josh Allen's desperate fourth down heave hit the turf at Arrowhead Stadium, the Buffalo Bills had hope. "There is a flag,” CBS play-by-play standby Jim Nantz announced to the masses watching at home.

Tight end Dalton Kincaid was able to track down the ball but could not haul it in, turning the ball over to the Chiefs who ran out the clock and secured the 32-29 victory. There was a bit of mystery on the play, however, with CBS announcer Jim Nantz saying officials had thrown a flag -- a call that was never explained during the broadcast.

For a few seconds Sunday night, Jim Nantz — and the CBS scorebug — gave the Bills some hope during the fourth quarter of their AFC championship clash against the Chiefs at Arrowhead Stadium. Josh Allen’s final heave that went through the hands of a diving Dalton Kincaid had fallen incomplete.

CBS got Buffalo Bills fans' hopes up on Sunday after Josh Allen's incomplete pass to Dalton Kincaid, with the score bug signaling that a flag had been thrown on the play

The final minutes of Sunday night's AFC Championship Game featured an atypical mistake from CBS play-by-play announcer Jim Nantz. On the Bills' final offensive snap, an incomplete pass on fourth down by Josh Allen with 1:54 remaining,