Question

LG Smart TV

I have a 55 inch LG Smart TV. A few days ago our tv started flashing on and off. Once turned off and back on with the remote, the bottom of the screen was dim but we were able to watch the tv. It did that for a few days and now, once it is turned on the picture is perfect for 3-5 minutes and the picture goes black but we can still here the sound. Any suggestions as to what is causing this?

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Answer
Since no TV techs show up.
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Answer
watch video

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