If you have poor picture quality or the picture on your screen is blocky, the problem might be related to the cables connected to your BASE TV box. Cables may have come loose during dusting or when you repositioned your TV.
Still have poor picture quality? Then try a new HDMI cable if necessary.
The picture resolution is automatically set correctly when you connect the BASE TV box to your television with an HDMI cable. Nevertheless, you may have to change the resolution if you have poor picture quality.