Sorreltiger:Forgive me if I'm being very dense, but the Prom was broadcast in 5.1, not stereo. Are you implying that there was something false in this? As I said, Toy Story was a stereo broadcast, which was very disappointing.
I've checked on some other forums and it seems the Proms were in DD 5.1, so a big thumbs up for that. didn't actually watch the proms myself as I'm neither a big classical nor Doctor Who fan.
hdmad:
I have also noted though that some programs are listed as DD 5.1 but my processor displayed Dolby Pro Logic.
Thats what I'm on about. Thats because the transmission whilst technically describeable as Dolby Digital, is in fact Dolby Stereo which is Digital Stereo with additional rear info that a surround processor can decode as Dolby Pro Logic signal.
If you're wondering why I'm being picky over this, its because there's a vast difference in sound quality between Pro Logic and 5.1.
5.1 has discrete sound ie sounds designed and specifically assigned to certain channels, it has bass seperation with a dedicated bass channel thereby avoiding bass distortion of dialogue and mids / highs whilst allowing a dedicated speaker to accurately reproduce the bass, it has accurate sound sound placement - the fact the sounds are discrete and thus assigned to specific channels and thus speakers meaning both placement and volume can be tightly controlled so that effects can be very accurately placed in the room.
Dolby Pro Logic on the other hand has non of these features although PLII does get a dedicated bass channel upgrade.