Re: Audio and video cutting out

Spent a couple of grand on an Lgg4 tv. When connected to my 360 box the audio and video cut out momentarily. Not at the same time. 
I am using a Sonos beam and two Sonos ones for my audio. Tried various tv and 360 box settings. 
Didn’t have an issue with my old tv. So annoying I spent all that money on a tv which I can’t use properly. 
Any suggestions?