Plumb Crazy - S4-E1
Continuity mistake: When the fountain's head flies off, Barry bends down and puts his hand on Paul's right shoulder. In the next shot, his hand is suddenly on Paul's left shoulder and a few seconds later in the next shot it's back on Paul's right shoulder again.
Visible crew/equipment: The boom mic is visible twice in this episode: After Barry tries to hit the golf ball (which Paul nailed into the ground) and he falls over, the boom mic is briefly seen at the top of the screen. And When Paul and Barry are in the paddling pool and Paul says "That will cost you a stroke", the boom mic is again briefly seen at the top of the screen.