LG TV - The TV Changes Channels By Itself — LG Help Guide: Causes

Although you did not press anything while watching TV, the channel automatically changed.. Try removing the batteries from the remote control to see if the problem of automatic channel change resolves.. If the issue resolves after battery removal, your TV remote requires either repair or re.

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.

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.