I can see it on Google Earth now, North Blyth terrace streets, ships at one end and railway trucks passing on the reverse shots.
In other episodes there was a small harbour bending to the right that I didn't recognise but I can see now it must be Seaton Sluice, never been there myself!
They have been as far south as the road down to the South Gare on the Tees.
Hey Graham maybe you can do 'Vera Tours' and make an honest bob or two