I came home yesterday from being out of town for the weekend. One of my HR10's didn't have any signal quality at all, on either satellite or antenna.
My other unit was just fine. It happened sometime yesterday after 5:00 am (I had some things set to record over night Saturday/Sunday, and they went fine).
Basically, I was getting "channel not available" messages on both satellite and antenna. The rest of the unit appeared just fine (I could watch previously recorded shows).
I ran the system tests, and it said I had "0% signal quality on both satellite and antenna".
At any rate, I rebooted the box and all is well, but I am curious if anybody has seen this.
Lastly, both of my boxes are still on 3.1.5f, so it's not a 6.3 or 6.3a issue.