You don't want it to go away on a reset and then OOW (out of warranty) come back and be stuck. Call in, start a log with your receipts and transaction numbers.
They should note resets and cables.
I have a 2015 Samsun UHD TV 75 inch I bought 4 months ago... Its been working beautifully until a couple weeks ago the picture started going black for 1 second and back on again. No loss of sound. There is no pattern to it. Sometimes on a channel change other times an hour between blinks but its non stop. I have the latest software and it does not happen when using the DVD player or Karaoke system its just in cable (Satellite) mode.
TV model is UN75JU6500 F Any ideas?
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