So, I have a cheap'ish Hisense flat screen I use in my gameroom. It's been a solid little TV for the last few years.

Recently, I've noticed it start to flicker and darken until the screen just goes black. It seems to me to be a problem with the backlight ???

If I fuck around with the various modes: game, custom, theater, soon as the problem starts, it will sometimes spring back to life for a couple minutes...this makes me feel like it's a software/FW prob.

I've updated the FW, tried every single settings tweak under the sun but it's still doing it.

Anyone here know stuff about TVs and common problems that might point me in the right direction to figure this out?