My in-laws got a new Pioneer Receiver (VSX-1023) and they have a Direct TV Genie DVR. I connected the Genie to the receiver via HDMI, they also have the 5.1 speaker setup. My questions are: Does DTV output ALL channels in 5.1 or just movie channels or just certain channels? (I set the Genie box to output Dolby Digital in the settings). Should they configure the receiver to receive in Dolby Digital all the time? If DTV does not broadcast all channels in Dolby Digital all the time, how would the Pioneer receiver handle the signal of those channels that are not DD. Will it just convert to regular stereo? Many thanks in advance!