In 2012 I worked with Year 7 and 8s to develop a weekly news show. I taught the key members how to green-screen, audio mix and do lighting. Then I stood back. (Well, not completely I still helped with their scripts and punctuality). I intentionally let them decide on how professional it should look and let them learn from their mistakes. They also trained up the following teams.
This proved to be a successful tactic, as it has kept going after I left. And with minimal teacher oversight.