...but I thought that my 522's did reboot daily.
I don't have them anymore so someone that actually does have a 522/625 will have to confirm whether they do or don't reboot nightly.
Sorry, I should have been more specific.... While we had it, I'm positive it did not. That's why we forced a reboot. I do seem to recall reading from 522/625 users later that a s/w update added this.
Assuming this is true for the 612 as well, the answer to my original issue is that I'll change the daily Update time to Noon. No one is in the bedroom at Noon any day of the week, but if we're recording something (kids shows most likely that repeat dozens of times a week) it'll still record them.
And then I won't get awakened by the noise of the update