I understand that filming for the next series starts in October.
I never care about little errors like burglar alarms in the background. We all know that although it is set in "oldern days" it is filmed in the now so little things like that dont bother me. I'm not that bothered about historical accuracy in a drama - it if was a documentary I would expect them to get their facts right.
I never saw the first Poldark so have absolutely no idea what it is all about.