The rise of the soundbar has made it easier than ever to upgrade the audio for any TV, new or old. Simply plug the soundbar into a power outlet and then connect the HDMI cable to both your soundbar and the back of the TV. Using it will ensure you get the most reliable HDMI connection with the highest quality between your TV and soundbar. Many modern sets will automatically calibrate to it by default, so you may only need to adjust the settings if the soundbar doesn’t output TV sound upon connecting it. Do I need to turn my TV's speakers all the way down or completely off once I hook up a soundbar?