Superbowl Sound FX on NFLN

The referee, at his own discretion, would have the right in this instance to award a touchdown to the offense if he deems the play would have resulted in a score.

This is in the rule book though I don't think it's ever been used.

It's been used in college.

<iframe width="420" height="315" src="http://www.youtube.com/embed/eSteCSinjTs" frameborder="0" allowfullscreen></iframe>