I have a Sonos beam which provides me with 5.1 audio for every other streaming service when available but not BT sports. I'm able to watch in 4k hdr no problem but limited to 2.0 audio. The type of audio provided is displayed via the Sonos app so it's not a case of misidentification either. I'd greatly appreciate any assistance as sporting events were on the main reasons I purchased a sound bar to being with.