#4 I like this tv, but i'd also like to get a soundbar to go with it. if i did, would the soundbar volume control work with the tcl / roku remote?
The optical digital audio output of the TV is line level or fixed and not controlled by the TV remote control. If you connect a sound bar using this output you would need to adjust volume using the sound bar remote (or on the sound bar itself). The headphone jack audio output of the TV is variable, meaning it will adjust using the TV remote control volume. If you use this connection for the sound bar then you will be able to control the sound bar volume using the TV remote. However, note that the TV speakers are always muted when something is plugged into the headphone jack so if you wanted to switch between using the TV speakers and the sound bar then you would need to plug/unplug the headphone jack connection each time