But with due respect given to the laudable efforts of MDG and Chesky, 99.9999% of the world doesn't care. A Dolby feature will get noticed though and it will synthesize height channels from all available 5.1 material. Incidentally, Yamaha have been synthesizing height channels for a decade and I had a "5.2.1" setup with my Yamaha A2.

Roon Developer and ex-moderator of this Forum
I am #25 in the HH1 photo of fame.