Hi - a question about HDMI and Dolby Digital. I´ve managed to get Apple TV to route hi def to the TV (Sony Bravia) via HDMI and Dolby Digital to the decoder via optical. My TV has optical passthrough and output, so I´ve tried connecting the TV to the decoder (i.e. Apple TV -> (HDMI) -> TV -> (Optical) -> Decoder). I can hear stereo, but the decoder no longer detects Dolby Digital content. Question: What do you think is breaking? Is Apple TV not passing 5.1 up the HDMI cable, do you need a special HDMI cable, can HDMI pass 5.1, is the TV not passing it? I´m trying to save a cable and having to manually switch inputs on the decoder when I switch between TV and Apple TV, so all thoughts appreciated.