While it is a charming series there are more script flaws than can be counted one I noticed is
'I cannot Canute'.Canoot/kanute.'. whatever is just not a word.. but I can be wrong. It is not part of that period's conoscienti.
The Hotel near Danbury from the front one can see it is a quaint cottage that doesn't seem capable of having a runway sized hallway.
The Hudson River in the series seem narrower than the East River ( could have used techology to make the scene realistic)