I'm using various 2MP Hikvision cameras with a very affordable Provision-ISR NVR, the NVR is strictly used as a viewing interface only I don't use the recording function, for recording I have a sever. The monitor is a 23" FullHD. When I login into the web interface of the NVR I can actually adjust the split view to use the main stream in the browser but on the NVR's display output it only uses the sub stream. Is there perhaps a NVR that would support main stream split on at least 4 channels that can be recommend? Nothing too fancy I only need a viewing solution.