Have you guys ever announced before?
I've never done a game before. Was on camera throughout high school so I'm not completely clueless, but never called a game.
Are you a color guy, or main commentary?
If commentary,
First thing people will notice. First, they know numbers. So make sure you know who is who. Second, they know down and distance, so make sure that is what they know and say it often since they won't have graphics. Third, say the score a lot. Fourth, in high school games being a national broadcast, mention as many colleges as you can with where a player is offered.