Factual error: Leslie mentions that Eagleton is "2 towns over." We in later episodes see the border wall between them (S3E12), indicating they're right next to each other.
Parks and Recreation (2009)
1 factual error in season 2 - chronological order
Starring: Chris Pratt, Amy Poehler, Aubrey Plaza, Nick Offerman
Genres: Comedy
The Treaty - S4-E7
Revealing mistake: Tom is talking on the phone in Ron's office. When he turns the phone at an angle the call home screen that has the end button, the speaker button, etc. turns to its side, which means it was a picture - he wasn't actually calling anyone. (00:02:25)