"Brace Yourself Effie..." new 622 software problably coming in December

It says HD in the program info for programs on the HD channels if a program is being broadcast in HD, at least in the HD only guide.

Something I was wondering is how do you know if a program on an HD channel is being broadcast in DD 5.1? Are all HD programs in DD 5.1?
 
I just hope this update has native resolution passthrough, as promised we would all have "before the end of summer". Not sure which hemisphere they were talking about...