I've seen this clip a few times. I Know UNI is involved and I know it was at UNI because the end zone says Panthers. I've never paid real close attention because I didn't recognize the UNI connection in time, but I believe it was a visiting team that made the bone-headed move.
A guy caught the ball in the end zone on a kickoff. Looked around a little bit and started walking toward the sidelines still holding the ball. Since he hadn't taken a knee, that was a live ball. A UNI player knocked it out of his hands, grabbed it and fell down. Touchdown for the kicking team.