https://en.m.wikipedia.org/wiki/Rock_'n'_Roll_Rumble

When we still had actual rock stations who dedicated air play to local music and they sponsored this stuff it was bigger. Anngelle Wood still runs it and a podcast type local music show. A lot of the groups involved either as bands or judges tend to be people who know the host, so it can be a little circle jerky, but still a great way to network if you want to break into the local music scene.