What's happening in that time is just random bullshit. They'll run bits on the jumbotron, hold raffles, go play games with people in the stands, etc. All sponsored by "<SO AND SO>, the official <THING> of your <LOCAL SPORTS TEAM>". Or, in other words, ads.
You could show the players and coaches on the sidelines, but that's also rather boring. It'll be a couple of guys shooting the shit on a bench, or a couple of guys hunched over a table, or some guys warming up.
The best thing they can do is like information from other games maybe.