Other mistake: In the opening sequence Oliver stops the tractor in front of the house by pulling a lever. This lever is not a brake but is to engage a wheel to put a belt around to operate a threshing machine.
Suggested correction: The lever is to engage and disengage the clutch, when he pulls it back that disengages and the tractor would stop.
Older tractors had a hand clutch like that.
Plot hole: Oliver and Lisa are in a truck, taking a load of apples to the Farmers Market in the state capital. Oliver says it's a "15-hour drive." Driving 30 miles an hour, that would be 450 miles. Driving 40 miles an hour, that would be 600 miles. It was never specified where Green Acres is located but only Alaska, Texas and California extend for such a distance north-to-south and/or east-to-west.
Suggested correction: He doesn't say it's a 15-hour drive. He says it's a 15-hour trip, which could mean the drive there and back total 15 hours. Or he could be taking into account all the times they'll be stopping and traffic. Not to mention that the driving distance between two cities is always greater than as the crow flies. Two cities might be 100 miles apart but the drive may end up being 150 miles.
