Archer Season 4 Episode 4

After Ron picks up Archer in Montreal, they drive south to New York State and as they approach the Blackpool Canada/US border crossing connecting to Interstate 87 (displayed a few minutes later in the episode), the attachment on top of the "Canada United States Border" sign says they are crossing the 49th parallel.This is a major goof based on the common misconception that the Canada/US border is the 49th parallel. The border between Canada and the United States only runs along the 49th parallel in Western Canada - west from the Lake of the Woods in western Ontario. East of the Lake of the Woods, the border is actually much further south than the 49th parallel - Montreal actually sits on the 45th parallel, and the Blackpool border crossing is even further south, at 44�59′N.In order for Ron and Archer to cross the 49th parallel, they would have to drive far north of Montreal, completely away from the Canada/US border.

In the phone booth that Archer telephones from at the Montreal Casino, the advertisement behind him reads, "VACATION - It's Never Out of Season." This advertisement would not be allowed in Quebec, as it is only in English, contrary to Quebec law.