Simple but clever! No doubt they are pushing it because OLED TVs can't do that due to fear of burn-in.
QLED I believe is also prone to burn-in. I'll check over @ rratings...
It's funny, because some people are anal (geeks and nerds) about having the best TV with the best picture and blacks and Dolby Vision, and yet when they ISF professionally calibrated them it's with burn-in logos and characters and gremlins on the background screen.
OLED and plasma too are burn-in technologies, so as nice as people like them with the best this and that, it's funny they blind themselves, the real nerds, about burn-in. The day they'll admit that'll be the day.
I think QLED is also emissive, so burn-in will appear eventually.
And I've read that Samsung is thinking OLED. But maybe my memory is a little blurry.
LED to a certain extent can show burn-in too, but not as big as OLED from LG.
That feature is cool, the TV disappearance on the wall, but it would be interesting two years from now to watch Coco in 3D or in 4K and see the bricks in the background.
It don't really matter because 8K TVs will replace our today's cancers.