Remember there is a theory to this and eventhough all the colorful lights look fun, its not really helping your cause. It needs to be 7200k. Get the antec lighting on Amazon, after a deep dive of research, thats what I went with for mine.
I have 3 of them on my 75". They all connect into this lightweight USB hub I have on the back of my tv. I ran an extension USB cord from that hub behind my wall down to where my components are. Plugged that into a dongle, and then into a z-wave plug. Put the plug as a thing on SmartThings and then have Echo pick it up. Alexa, turn on the bias lighting…bingo