Hi - is there any way that I can stop my TV (LG OLED) from always connecting and playing audio to my Sonos Amp through HDMI ARC? When I manually select the internal speakers on my TV, within a few seconds it reconnects to the Amp via ARC.

I’d turn off the Amp if I could but it doesn’t have an off button! The reason I want sound through the TV speakers is because they are much quieter and we don’t hear them when the kids get up early and start watching TV.

Thanks