I have a new Shaw HD PVR box (Vancouver) and I'm wondering why sound cuts out quite often? It's pretty annoying. Is this a "feature" of HD or something?

Shaw Cable
Shaw PVR
HDMI
Sony Bravia
No external sound system (yet)

Thanks in advance.

I would check out this thread

http://www.digitalhome.ca/forum/showthread.php?t=73915