After I setup my Wireless NVR 8 CH, I decided to attatch it to my smart tv 50 inch Samsung 4K for viewing, im also using a wireless Mouse. The box is hidden up on top of cabnet. Question I have is, how do you adjust the screen size so the menu icons across the bottom and around edges can be seen fully? There half covered up by the edge of the screen. I guess being connected to tv screen that it cant be adjusted?