Hello, very , very new to doing a security system right. I currently have a 2 mp bnc camera system that I display on a 1080p tv. I would like to upgrade for better picture quality and better night vision.. (I hate the spotlight effect I currently have.) So, if I upgrade to a 5mp camera system. I'm assuming that if I display it on the same 1080p tv. It's going to downgrade it to the same as my 2mp so the quality will be the same. And the only way to get better quality is to upgrade both camera and tv. Or will the 5mp picture actually be better than the 2mp on the same tv ?And now night vision... I've seen adds for something called exir .. and that suppose to stop that spotlight effect.. I was thinking I might need to turn off the camera ir and buy an ir floodlight of some kind..Can someone help clarify this for me