I purchased a samsung series 6 TV a couple of months ago and also promptly added several domains to my pihole in an effort to stop the ads and the slurping.
The other things I hate about this TV:
1) it is impossible to un-install some apps e.g. disney and netflix. best you can do is remove them from the home screen
2) the remote control is an ergonomic mess with no spaces around any of the buttons. the amazon prime , netflix and rakuten buttons are put right next to the most frequently used buttons (e.g. volume control) so that it's easy to accidentally press them.
3) the tiles on the home screen are so small and badly designed that it is very difficult to see which one you are about to select
4) very limited apps in the tizen o/s. compared to an android based operating system.
I should have done the same to as the guy in the article and returned this TV.