Dr. Mike asks Sully if his father told him about the birds and the bees, but in S2E6 "Where the Heart is," Sully had already told her that his father died when he was too young to remember him.
The beer blows out of the barrel as if the beer was under pressure. The beer would only have gravity pressing on it.
In the opening scene, Sully is wearing a suit. His tie is a modern tie.
Brian would not have set out on his journey on foot. He would have taken his horse Taffy that he worked so hard to buy from Hank.
No medical doctor would ask a man how he learned about the birds and bees especially since he once had a wife and baby.
Brian would have run away with his pet wolf and his personal horse, Taffy.
Dr. Quinn left her adopted children unsupervised for days when she doctored Sully. Now she worries about Brian because he left for a few hours.
Colleen is hypocritical. She watched Peter bath. Now she thinks a boy watching a girl bath is wrong.