Great point. We built a web app that allows businesses to create, upload and schedule content to play during the commercials. Unfortunately, restaurant owners are way too busy for that and usually don't have marketing backgrounds so we now offer to create/manage their content for them.

It isn't too much trouble for our team to manage and it's a great value add for the businesses.

I imagine just a still image of their current specials being displayed and any upcoming events is more than enough to display during commercial break.

For small biz, you might have to provide a simple template of this. Trivial, but there's a reason most bars just have a blackboard..