We have learned a lot since we began using YouTube Live!  The In-Service and Addendum should be helpful, but they will be updated in the future.  In the meantime, please, 

CLICK HERE to access the latest instruction sheet that is in the balcony with the laptop.

YouTube Live Virtual In-Service (6:09)
YouTube Live Virtual Troubleshooting Addendum (3:03)
Sound Board Virtual In-Service (33:16)