@reolink-lorenz thank you that answers my question. I am looking at the RLC-520s cameras. Do you have a NVR with 4 channels that fits these cameras? Or even a NVR with 4 channel and/or no HD installed jsut to get us what we are looking for?

Looking for a POE system to live stream an indoor dance studio. Looking to install 1 POE camera in room A and 1 POE camera in room B.
Owner would like to live stream room A to 35" smart tv 1 and room B to 35" smart tv 2. Question: do I need 2 NVRs to do this? Would it be easier just to install 2 NVRs (one for each TV)? or can I use one NVR and somehow split the one NVR full screen to TV1 and full screen to TV 2. Hope that makes sense. NVR will be used later for other rooms eventually.