So far I know the box sends Dolby audio signal when auto is selected but it does not show up in the epg or menu items but if you check in the soundbar signal info it will show Dolby ..in order to save cost they have removed official Dolby certification..seems they are following dishtv strategy and going that pathI think the main concern should be,
1) The stb does not send any audio out from the rca ports if Auto is selected in audio section.
2) The stb fails to send Dolby audio to TV/Receiver via HDMI when Auto is selected in the audio section.
The 2nd point should be a major concern as other boxes can do bitstreaming.