I bought this tv in fact 2 of the back and 2018, and to this day i still regret it, roku updates that tend rebrake functions that fix. among other issue.

But i just come to realize ROKU not TCL ROKU does not support “fixed output” for audio. as such moment ANY thing is connected to 3.5mm headphone/line out tv speakers are out right disable with ZERO means get tv speaker back with out constantly unplugging and plunging the connections which be annoying enough, but even more so when it tv is mounted.

Is any way to circumvent this? far i am aware this easily fixed software update. Only other means i no around this is get optical out splitter but that dont solve problem of if want to use AV receiver for 5.1 DD i have switch the output from PCM to DD cause my headphone only accept PCM.