My PVR just asked for a reboot at 4 am, but I made it wait a few minutes before I pulled the plug myself.
When it finished the reboot, I checked the Guide and noticed that Mrs. Davis now showed a start time of 2:47 am (instead of the incorrect 3 am Start time, before the reboot). The end time stayed the same as 4 am.
So I assume, that had I manually rebooted my PVR earlier today, the Guide would have corrected itself.
That first episode of Mrs. Davis is already up on Rogers CTV SCI-FI On Demand.
I like that that the digital guide doesn't reboot itself every day, but if I go several days, or even beyond 10 days without at least a manual reboot, Guide errors like this one could be more likely to occur, without even noticing what was wrong.