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How to Connect a UHD Antenna and Run Auto Tuning on Your TV — LG

To watch UHD broadcasts, place a UHD antenna near a window to minimize signal interference. Next, connect the antenna to the antenna input on the back of your TV. Once connected, run Auto Tuning in your TV settings to scan for channels.

How to Connect a UHD Antenna and Run Auto Tuning on Your TV LG USA help image
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TroubleshootingTVs

What to Check First

  1. 1. Place the UHD antenna near a window to minimize signal interference.
  2. 2. Connect the antenna cable to the antenna input on the back of your TV.
  3. 3. If your TV has two antenna inputs, connect the cable to the input labeled UHD TV Antenna.
  4. TVs released in 2021 or later (webOS 6.0 or later): Press Settings on your remote. Then, select All Settings, General, Channels, Channel Tuning, Auto Tuning, Start, and Done.
  5. TVs released in 2020 or earlier (webOS 5.0 or earlier): Press Settings on your remote. Then, select All Settings, Channels, Channel Tuning, Auto Tuning, Start, and Done.
  6. If your TV has only one antenna input, connect the cable directly to it.
  7. If you use a set-top box, you do not need to run Auto Tuning. Change your TV input to the HDMI port connected to your set-top box.
  8. Menu names may differ depending on the TV model and webOS version.
  9. Secure the antenna if you install it outdoors or in an elevated location. To prevent electric shock, do not touch the antenna or cable during a thunderstorm.
  10. To watch UHD broadcasts, place a UHD antenna near a window to minimize signal interference. Next, connect the antenna to the antenna input on the back of your TV. Once connected, run Auto Tuning in your TV settings to scan for channels.

Why This Can Happen

Symptoms can have more than one cause, and the correct steps depend on the exact model, installation and operating conditions. Use the checks above to narrow the issue before service.

Safety and Model-Specific Guidance

Stop troubleshooting if you notice burning, electrical damage, unsafe heat, gas odor, refrigerant concerns, or water near electrical components. Follow the official LG USA instructions for your exact model.

Frequently Asked Questions

What should I check first for How to Connect a UHD Antenna and Run Auto Tuning on Your TV?

1. Place the UHD antenna near a window to minimize signal interference.

When should I stop troubleshooting and contact LG?

Stop if the product shows signs of electrical damage, burning, leaking near electrical components, or if the recommended checks do not resolve the issue. Use LG USA support for model-specific service guidance.

Does this guidance apply to every LG model?

Not always. Controls, error codes and service steps can differ by model. Confirm the exact model number and follow the linked LG USA article for model-specific instructions.

Related LG Products

These model pages are linked because the stored category or exact model matches this Help Library topic.

Buying Guides for This Product Type

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Read the Official LG Guide