I had a similar issue with my LG Soundbar as it always displayed LG Opt on the front. I appreciate it's not a Samsung model but the reason I'm replying is that I then noticed a sleep button on the soundbars remote control. Yours might have a similar button ? The only issue is when I turn the TV on standby the soundbar goes into standby and when turning the TV back back on the LG name re appears. In the end I couldn't be bothered to keep hitting the sleep button and after a short time now look past the display. I hope you find a solution.
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