Now it's changed to Summer time, my PVR80 (T810), v5.3, displays the correct time on the front display, but the timer recordings have been set one hour forward, i.e. they're recording one hour later than they should. Also the times on the library recordings have also been changed to one hour on - hardly a problem but interesting.
It's just like the old days when I forgot to reset the VCR clock, and it made set recordings at the wrong time!