When MCC started doing church at Quincy hall. We wanted to provide in-service kids programing. No big deal, except that the rented space was just one giant room for both Church and everything else. Normally a booming church service would drown out any other attempts to do programming. To solve this, we set-up the silent disco headphones for the kids, that would play audio from the Family Life teacher and video. We also started running the church service through another channel for folks who were at church but were having trouble because it was echoing in the back.