Well, who expects Atmos sound from punny little TV speakers. But LG is being arrogant and refuses to even allow passthrough of Atmos audio to our Atmos enabled Denon/Onkyo receivers through HDMI-ARC (Audio Return Channel).
Don't think this is LG's fault as ARC can only pass back PCM, Dolby Digital and DTS. The HD and extended audio will only be supported in eARC which won't debut until HDMI 2.1 arrives in TVs next year.