That’s a rather outrageous claim! Do you have evidence for this?
Is it perhaps the case that LG TVs do not literally do what you suggest here, i.e. upload literal screenshots of what might be private, confidential or proprietary information and sell those screenshots, and that you are being hyperbolic or repeating without verifying unsubstantiated claims made by someone else?
What is outrageous is that LG does this.
https://www.reddit.com/r/LGOLED/comments/1lnup1s/if_you_use_...