Originally Posted by RemyM
If you run red and white RCA audio cables from the cable box to the TV you can leave the box set at DD and you will still get stereo sound through the TV when the receiver is off.
I too have the same audio set-up (HDMI from the DVR-HD to the monitor and optical wire to receiver) but still need to switch the audio output settings between HDMI and Dolby Digital and the audio range between wide or narrow. This is because I dub lots of movies from the DVR and there is a dramatic decrease in decible level when Dolby Digital signals in the wide position are downconverted to 2.0 (reducing audio quality going out to the DVD recorder). Unfortunately, audio settings do affect the "out to VCR" function.
When watching a broadcast with Dolby Digital, the audio range should be set to "wide" to enjoy the full dynamic range of the 5.1 experience. Keeping the range in the "narrow" position greatly deteriates from home theater effect.
Those who do not make recordings do not need to switch between settings (just hook up a separate set of audio cables to the TV along with the HDMI). But those of us who record onto DVD (or even VHS) will always need to.
BTW - DVD recorders can be connected to the DVR's S-Video output to make better recordings (while not mentioned in the user's guide, the S-Video output also works with the "out to VCR" function).