enable energy savings and turn off the tv after 2 hours. problem solved! Most tv's show a popup when they are about to shut off because of power savings, and with a button on the remote you can reset the timer.

I had a girlfriend who would flush the toilet before using it. She said "it's cleaner this way". I tried to get her to stop, but it was a futile effort.

That doesn't kill LG OLEDs thought, that results in a nearly black screensaver (just a small slow "firework" effect). Wastes a touch more energy than turning the tv into sleep mode (since nothing actually turns off anymore), but hard to believe that would shorten life much.