I think we went to smart tv, then sources, clicked tv plus, in the upper right corner, I think, there is a link that will show all the channels, they popped up on the left, hit select all, then on the lower right there is a delete icon, hit that. We tried a lot of things, and it was still in tv plus, but when we went back to hdmi1, it went away and has not come back the few times we turned it on again. I hope I rememered it all correctly. Good luck!
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