Intel has dropped support for NUCs, So I guess that is pretty much the end of living room compliant HDR/HDaudio capable OSS.
"We have decided to stop direct investment in the Next Unit of Compute (NUC) Business and pivot our strategy to enable our ecosystem partners to continue NUC innovation and (censored). This decision will not impact the remainder of Intel’s Client Computing Group (CCG) or Network and Edge Computing (NEX) businesses. Furthermore, we are working with our partners and customers to ensure a smooth transition and fulfillment of all our current commitments – including ongoing support for NUC products currently in market."