Continuity mistake: When Richie gets up from a table at Arnold's to meet with the Fonz in the men's room he's wearing jeans. When he enters the men's room he's wearing grey slacks. (00:07:50)
J.J. Becomes a Man: Part 2 - S2-E3
Visible crew/equipment: At the police station, when Florida is begging James to borrow money from the loan shark, she and James stand up; Florida is on the left, James the right. At the top of Florida's head behind her, you can see the microphone dip into view overhead, and it moves quickly out of the frame. Then it's visible again as Florida and James walk toward the loan shark. (00:18:00 - 00:33:00)