How to Fix Picture and Sound Quality TCL Smart TV

Authored by: Support.com Tech Pro Team

1. Introduction

The TCL Roku TV is a smart TV with a simple, intuitive interface and built-in ability to watch live TV with an antenna, access connected devices like a cable set-top box or game console, and stream content over the internet through different streaming channels (more popularly referred to as apps) that can be added via the Roku Channel Store.

If you're having issues while watching TV, this guide will provide some solutions that may help.

2. Picture and Sound Issues

Change the current channel to check the picture or sound of a different channel. If the picture and sound quality is poor on a specific channel only, there is a possibility that the signal strength of the network is poor.

3. Additional Information

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4. Adjust Antenna

If the TV is connected to an indoor antenna, try to adjust or re-position the antenna until you get stronger signal strength.

5. Check Coaxial Cable

1. Make sure that the coaxial cable is firmly attached at the back of the TV and that there are no broken wires.
   

1. If the TV is connected to a cable or satellite box, ensure that the box is turned on and the cables are firmly connected from the box to the TV, and to the wall or outside source. Try changing the cables, if necessary.
   

6. Additional Information

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7. Noise Reduction

Only 4K UHD Roku TV models support Expert Picture Settings.

1. Launch the Roku App on your mobile device.
   

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2. Tap Settings in the bottom right corner.
   

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2. Scroll down and tap Expert Picture Settings.
   

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2. Change the value for the Noise Reduction option.
   

8. Restart

1. Press the Home button on your Roku TV remote.
2. Scroll up or down and select Settings.
   

1. Press the right arrow button and select System.
   

1. Press the right arrow button and select Power.
2. Press the right arrow button and select System Restart.
   

1. Press the right arrow button and select Restart.
2. Press the OK button to confirm.

9. Restart Device

To restart your device via power cycle:

1. If your device has buttons or a remote control, press the power button to turn it off.
   

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2. Unplug it from the power outlet and wait for 10 seconds.
   

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2. Plug it back into the power outlet, then turn it back on from the power button if it has on.

10. What's next?