I think you caught one of my posts, I have a SuperMini NVR (Google it, there ubiquitous) I picked up on the cheap for displaying on my main TV.. All my IPC's are ONVIF complaint so with a mouse plugged in, it auto-detected all of of my cameras.. a few of my 3MP cameras are greater than 1080p so it did not display the main feed, but it would display the subfeed just fine.. and in a grid it'll only show subfeeds.
Once all the cameras were displayed in the order I wanted them I simply rebooted it to see if itd come back up without intervention, which it did.. so I unplugged the mouse and took it to the living room, plugged it in and let it run.
Worked fine for that really, but now I am retiring it and going to a RaspberryPI based viewer because I like being able to hack on it and use custom grid layouts.. and it was just a tiny bit more.
I used TinyCamPro on an Android Box and the only nice thing was jamming music while viewing the camera streams.. Frame rate sucked ass, nothing like my silky smooth displays I am used to.. with Android App on Halloween; my party guests could hardly see trick-or-treaters costumes cause kids run around so fast.