I have a theory about the "time to tune channel" improvement listed on the release notes. I know a lot of people are still complaining it's markedly slow (and I don't see much of a speed increase if any -- most of the time I count between 3 and 5 seconds to change). That said, I have noticed something different about channel surfing that I consider significant and indicates to me they did rewrite some code. Previously on my HR20, when I'd "channel surf" the long delay would often be accompanied by an all black screen, then a period of time with an all grey screen (often with the audio feed under it) and then finally the video feed would lock in. As of this morning, I could not cause any channel changes to induce the all grey screen. Why do I think this is significant? Because outside of the "Do you want to delete?" bug, I've only had two unwatchable recordings, both from MPEG-4 channels. On both of my unwatchables, I did not experience negative numbers in the time line or any of those features; my unwatchables both manifested themselves as, you guessed it, a recording of an all grey screen. So: 1. I've privately theorized that the partial/unwatchable bugs could be caused by some aspect of the feed not locking in correctly as the HR20 starts recording. Perhaps the lack of an all grey screen in this process is a positive step forward? 2. Can others confirm the all grey screen is gone during channel surfing? If it makes any difference, I'm connect via HDMI to a Pioneer 1140 plasma.