Visible crew/equipment: When John-Boy is parked in front of Godsey's, with Erin in the vehicle and Jim-Bob at the pump, the reflections of location set equipment and what looks like the leg of a crew member are in the rear window, behind the driver seat. (00:14:35)
Visible crew/equipment: When Jim-Bob rides up on Blue while Sarah is under her car, the reflections of the location bank lighting and the moving boom pole are visible on her car's surface, particularly when Jim-Bob is underneath in the closeup. (00:20:40)
Deliberate mistake: On Honor Day, while Jason is singing "It's a Long Way to Tipperary," when Ep and Sarah walk off together a few shots of them are flipped shots. (00:41:45)
Continuity mistake: When Curt, Mary Ellen, and her siblings meet Vanessa at the bus station, in the following shots the amount of ice cream on the sticks goes from less to more, particularly Mary Ellen's. (00:02:10)
Visible crew/equipment: When Jason shows up to see Vanessa while Curt is loading the back of his van, as Curt closes the rear doors the reflection of crew, equipment, etc., is on the door window. (00:30:50)
Visible crew/equipment: When John-Boy visits the Baldwin sisters for an interview with Hilary, just as he and Miss Mamie sit down the T-mark is visible on the floor, in front of the fireplace. (00:16:25)
The Inferno - S5-E20
Audio problem: When the Hindenburg explodes, audible screaming and panic of ladies' voices are heard in the foreground, but no crowd is present on the airfield except for the Naval aircraft workers.
The Inferno - S5-E20
Audio problem: While Johnboy and the press guy park, the Hindenburg is hovering over the aircraft field, while audible voices cheer alongside clapping and shouts. Yet, there is no visible crowd, but a small scattering of Naval comrades on the field. (00:17:23)
Revealing mistake: Her scalp 'shifts' slightly when Olivia fusses with her curly 'do, indicating it's an obvious wig.
Other mistake: John yells at the kids, "All right, everyone go to sleep now. It's getting late," when it's still daylight outside, possibly just after dinner time.