When I got my DTV, I came with an H20 (not an HR20). I had OTA HD/analog cable before that. I noticed that the quality of the H20 was considerably lower than my previous setup. HD got blocky and hard too watch with any motion. SD looked like it was Lego-mation (I just made that up, but you get the idea). I assumed it was the DTV service. I almost canceled it. Luckily I had purchased an HR10-250 on e-bay. It had a much better SD and HD picture via HDMI. I sent the H20 back and purchased another HR10. Now that DTV is rolling out more AVC channels, I'm considering an HR20. I have a couple of friends with HR20-700(?) and they appear to have the same blockiness I noticed with my H20. First, does anybody have an HR10 and HR20 and notice this? Nobody seems to mention it. Is it just me? Second, is it just the HDMI connection? I've now seen several HR20's hooked up with HDMI and they all get really blocky with any quick motion. This is consistent with both the MPG2 and MPG4 channels, so I assume it's not the feed. Still/low motion video looks very good.