So i noticed the other day watching twister on EncoreHD or StarzHD i think, via dishnetwork, that even though i was receiving 5.1 it was really just stereo leaving the surrounds and center unused. My problem with this is that when Starz or encore do this i cannot engage prologic II to get simulated 5.1 from the stereo source. (This is through a denon 2809 btw) Why do the tv channels not send it in a 2 channel signal rather than a 5.1 only using the FL and FR? Ive noticed that on other programing on the same channels the signal will change to either 2ch dolby digital or 2ch pcm depending on the programming. Anyone else noticed this?