Ok cool. Just so that you know, that's called a Sky Stream Puck. You might see people in this commmunity refer to that when helping you.
I think the first thing to do is to go to settings and in sound settings change the "digital output hdmi" or similarly named to Dolby Digital. If that doesn't make a difference try PCM.
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Sky Stream customer. Past user of Sky Digital, Sky+, Sky+ HD and Sky Q. 3x pucks. Main TV is an LG OLED with Sonos Beam.
