Typically Sat/Cable boxes will not Decode to MultiChannel PCM (That is something new with Bluray/HDDVD Players for Receivers that had HDMI in but no High-Res Decoders). So if you set a Cable/Sat Box to PCM your going to be switching it from 5.1 Dolby Digital to 2.0 PCM Dolby Prologic. I suggest you put it back to BitStream.

- Fiddler (IMHO)

If you think listening to music is fun, try learning an instrument.
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