We purchased a low-end LG OLED TV in 2022. A few months ago it started inserting LG text ads with a little bullseye at the bottom of the screen while watching OTA programs or using streaming apps. It wasn't clear how to remove them without stopping the programming or accidentally triggering some other ad display, which I didn't want to do. So the text ads sat there for 15 or 20 seconds before fading away.

It's the last LG TV we will ever buy.