Please confirm how is your Intel® NUC Kit NUC5PPYH connected to the Monitor/ TV, Which cable or adapter are your using?
Did you try different HDMI to HDMI (high quality) ones?
If this is correct, please provide your DxDiag report by pressing Windows* key + R key, type “dxdiag”, then press OK and then click “Save All Information”. In order to be able to attach the file, make sure you select the "Advanced Editor" option in the top right of your reply window. An "attach file" dialogue will be displayed at the bottom of the reply.