Hi Dave I got my youtube mixed up with answer bank,I also meant "history",I wonder what has happened I have so many in my history most of them I never asked for?
PS I think I've found a way.On the item you want to delete,hover the curser at the extreme right of the item and three vertical dots will appear.L/click and a box comes up "Remove from Watch History" then left click to remove.You are then left with an open space,if you go away from the page and then return the space closes up.