I don't know if this will be much help but I imagine you need to go into the vierra settings under sound or external settings. I have not tried myself but a TV as sophisticated as this vierra I would be surprised for there not to be a way.
By Faisal Alfaqih on April 17, 2016
If you don't connect it to your WiFi network, anything the TV might collect on your viewing habits, etc. cannot be transferred. That's the only truly secure method of preventing any data collection. I checked mine and could not find any other option in the setup menu.
By dave on July 3, 2017
VideoSecu Tilt TV Wall Mount Bracket for Most 23"- 65" LCD LED Plasma TV Flat Panel Screen with VESA 200x100 to 600x400mm, Free HDMI Cable and Magnetic Bubble Level BBM by VideoSecu
By J.F on December 26, 2012