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Should you buy a TCL TV? : Read more
Should you buy a TCL TV? : Read more
I had a similar issue with one of my TCL unit, after much gnashing of teeth and some mild profanity I discovered the audio reset located at the back if the TV (requires such as a ball point pen) . I left the TV plugged in, used a ball point pen, pushed the reset in...sound reverted back to normal. I do not have cable hooked to the TV and am streaming from my wireless network. I also determined later that the issue may well have been created by my service provider which unbeknownst to me was, at the time, doing a firmware update..This may not have been the case in your situation but I am reasonably certain this was the issue with the audio problem that I had. Aside from that kerfuffle I have had no physical issues with this TV since I've had it, which is going on 2 years.