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My LG TV has a weird flicker/strobing/pulsing issue. LG 49UH668V
So I noticed that my screen was flickering last night (and it seemed to be fine today, until now) , however it doesn't seem to be like the flickering seen in other videos showing screen flicker where the screen goes off and on like a broken fluorescent light (which seems to happen to TVs using LED backlighting like mine) instead the best way to describe it would be like a rapid pulsating where the screen dips in brightness and increases in cycles, it'll ‘pulsate’ maybe 20 times over a two second period then be normal for a second then repeat the process over again, the entire screen is still visible during this, at no point does the screen go black entirely (at least not for a duration visible to the human eye, I'll record it in slow motion and see if there's more than the usual 60hz flicker) this flickering is intermittent and at times the TV seems totally fine, except for a very thin (invisible at even 1.5m/6ft distance) horizontal bar near the very top of the screen which is more visible on the right hand side and flickers at the same rhythm as the entire screen. The fact that there's a thin bar makes me think that there may be an issue with whatever is driving the display rather than a ‘simple’ LED issue. There is a slight hum from the TV too (from the SMPS I assume) , however I'm not certain if that was always there and I'm just noticing it now.
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