Yo yo, some help for a bro?

I have an APEX LE1910 19" LED TV, kind of old but it gets the job done, all of a sudden while I'm playing warzone, the input selection tab kept popping up on the screen, over and over and it wouldn't stop, I figured, "hey, it's not that bad, I'll fix it after the game" then litteraly 30 seconds later, the volume starts to go down by itself for no reason, no matter how high I turn it up, and I can't seem to fix it, I've already unplugged and replugged it, and done all I could think of, any one able to help me? via /r/technology https://ift.tt/2A64tgB