I have had this problem for years with my 630 PVR. Twice a year, I have to do a PVR flush when the time changes (daylight saving time). This requires me to re-enter all the autotunes AND all the smart recordings.
The autotune times do not change and you cannot edit them. I live in Newfoundland and wonder if the 1/2 hour time difference is the cause.
I have an older model PVR and it does not have this problem.
Does this ring a BELL (as in Fibe) with anybody out there?
Shaw does not have a solution for this other than PVR flush which is a pain in the butt.