The Activity states Idle most of the time when a client is streaming a OTA channel from my HDHR Connect Quatro. It shows fine for TVE streams. It shows sometimes when a user is watching a OTA channel, and it does show when it is recording, or processing recordings. I was using DVR 2019.12.05.0128 noticing this.
I am on DVR version 2020.01.09.0819 right now, and it is not showing activity at all for OTA as of now. The server log shows the connections activity fine.