To enjoy full 4K resolution on your TV for the sharpest picture quality, start by ensuring you have an HDMI cable compatible with 4K. When purchasing or using existing devices such as streaming devices, cable boxes, antennas, or gaming consoles, make sure they support 4K as well. This is because your TV, cables, and devices all need to be compatible with the HDCP 2.2 protocol to transmit 4K content.
Next, set up your new TV by adjusting its picture settings for optimal 4K viewing. To do this, go to your TV's settings menu and look for the display or picture options. Select HDMI UHD Color or HDMI Deep Color for the HDMI port you are using. This enables the full 4K resolution and increases color depth. Additionally, adjust sharpness, backlight, and contrast settings for the best picture quality. Keep in mind that each TV model may have slightly different menus and options, so consult your user manual for specific instructions.