HDHomeRun Apps
Channels broadcast with AC-4 audio require client hardware with Atmos or AC-4 audio support for audio to work.
HDHomeRun app for LG: 2019 or newer LG television required.
VLC
VLC does not currently support AC-4 audio. Video will play but without sound for channels using AC-4 audio.
The VLC codec information page will report the video information but will not show audio tracks.