I also have noticed a huge increase in audio/video glitches with the HR20, compared to my experience with the HR10. My dish is aimed well, and recordings on the HR10 don't show the same frequency of degradation. I also prefer my MPEG2 west coast network feeds, so I rarely record HD Locals (since the quality is terrible, and the frequency of glitches is 10x worse).
The mpeg decoder in the HR20 just sucks.
The mpeg decoder in the HR20 just sucks.