Voice & Video Tab > Voice & Video Settings > Additional Features
Require Broadcaster Approval
Enable to allow a broadcaster to approve each user's request to view their broadcast. Disable to allow users to view a broadcast without first requiring the broadcaster's approval.
Viewer's Request Message
Set the message displayed to a user when they request to view a broadcast.
Broadcaster URL Message
Set the message displayed to a broadcaster accompanied by their broadcast URL.
Viewer URL Message
Set the message displayed to a user with the broadcaster's URL.