I purchased a 55" 8 Series (UN55KS8000FXZA) and within 6 months of having the television, I started experiencing the same thing. I thought it was due to the external components being connected to the OneConnect box and the TV acciendtly receiving a signal from an external component but, even with other components unplugged, the TV would still randomly turn on/ off. The remote would also seem to lose its signal and would be unresponsive to the TV. Now, its been about a year into ownership and the TV has lost video signal/ picture signal. Just this morning, the picture went out and the TV seems to be trying to turn on but then, immediately shuts off. I can see the backlight(s) turn on but soon after, the TV just shuts off. It tries to power back on, backlights turn on, TV shuts off. Same cycle over and over. Customer service said that it is the One Conncect Box and that it needs to be replaced. Well, my TV just went out of warranty and now I am S.O.L. I cant believe that in ONE year's time of owning the TV, I am having issues with the television. I initally bought this TV (over a Sony) simply because I believed in the quality of Samsung products. But like I said, it all started with the TV randomly turning off/ on and not responding the remote. There has been no power surges in my area, firmware is up-to-date, and my television is not constantly on. I couldn't imagine that it would be due to wear and tear taking effect so soon. Also, if I am on extended leave, I unplug the TV and components from the wall outlet(s) so that they dont continue to drain power. The television is wall mounted on an extending arm so, its not right against the wall. It has pretty good air flow around the unit.
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