Mrs. Polouvicka's catchphrase is "There is a saying in old Czechoslovakia..." followed by a proverb or some slice of homespun wisdom. However, Czechoslovakia was only established in 1918 - just 21 years before the character emigrated to Britain - there is effectively no such thing as "old Czechoslovakia", and a character of her age is unlikely to have identified as that nationality.
The Manor is to the left and down the road about half a mile from the cottage where Audrey lives, yet when she looks out her windows to see what's going on at the manor she looks strait ahead, when she should be looking left, and the manor is painted on the backdrop of the set outside the windows, when it's actually suppose to be half a mile down the road to the left, NOT across the road.