Are you mounting a new TV? I am not sure how it works here in CH, but I know that in the US, mounting a TV on your own will void any warranty if the TV is damaged in any way. I would dread every night hearing the loud crash of a broken TV. God forbid it fell on a Sunday, then you'd have a busted TV and pissed off neighbors.
Austin TV Wall Mount Guy
Google!
That's probably because some people there drill through the TV screen to mount it to the wall
Worked for me!!