Connect your cable or satellite box and other devices to your Samsung TV

Navigate to Settings > General > External Device Manager.

Select UHD HDMI Color (Input Signal Plus).

You'll see a list of the HDMI ports on your TV. Select the HDMI port that you are going to connect (or have connected) a 4K device to. This will turn the feature on for this port.

Make sure the TV and cable or satellite box are turned off.

Connect an HDMI cable to your cable or satellite box’s HDMI out port, which should be located on the back.

Connect the other end of the HDMI cable to any of the empty HDMI ports on your Samsung TV. 

Note: Make sure to remember what number the port is so you can change your TV’s source to it in a moment.

Turn on your TV and the cable or satellite box. Now depending on your TV, a few different things may happen:

Make sure the TV and video game system are turned off.

Connect an HDMI cable to your video game system’s HDMI out port, which should be located on the back.

Connect the other end of the HDMI cable to any of the empty HDMI ports on your Samsung TV. 

Note: Make sure to remember what number the port is so you can change your TV’s source to it in a moment.

Turn on your TV and the video game system. Now depending on your TV, a few different things may happen:

Connect the digital audio (optical) cable to the OPTICAL IN port on your soundbar, speaker, or surround sound system, and the other end into the DIGITAL AUDIO OUT port on the TV.

Using the TV remote, navigate to Settings. Then, select Sound and select Sound Output. From there, set the audio output for your TV.

Connect an HDMI cable into your audio device's ARC port. This is usually the HDMI OUT port, but check your device's user manual just in case.

Connect the other end into the HDMI IN (ARC) on the TV. Using the remote, navigate to Settings. Then, select Sound and select Sound Output. From there, set the audio output for your TV.