The Roku app is now fully functional and is live in the Roku channels. To access it search for "live kh" in the Roku channels. The new channel is no longer limited to HD video. It streams audio from congregations that stream a separate audio source. It will also display and allow listening of audio recordings from the meeting. The count of viewers using the ROKU app is also now integrated within the congregation count report that is automatically sent to the attendants via email and may be viewed online by the administrator.
If you check "Yes" to "Require authentication" in the congregation profile, then anyone that clicks on the link of your congregation will need to have created a username/password on the site. Then then the user details will show in the count report if they log into the website/mobile apps/Roku.
Is there a chance that besides the Roku App you will develop one for AppleTV?