https://www.engadget.com/2019/12/01/tcl-65-inch-6-series-4k-tv-700-at-best-buy/
"Most notably, the TV's built-in audio processing can introduce significant delays if you're passing content through the set to a speaker system."
Yeah, you know what's less painless? Return the piece of **bleep** and get a Fire TV. I just did that and am not disappointed! Guess what? For the same price, surround sound works great, no **bleep**ing around with it! I really wanted to like the TCL TVs since they are a new competitor, but I just don't understand how they can sell these junk TVs!?!? DID THEY EVEN TEST THEM?!?!
Wow, 90%, why that ALMOST WORKS! But doesn't.