Visible crew/equipment: After John finishes checking on John-Boy's car, when it cuts to the kids in the bathroom, note the vanity mirror's reflection. In between Mary Ellen's and Jason's reflections, we can see an older man wearing black glasses, yellow shirt, and blazer, who is standing outside the bathroom's doorway. We continue to see the reflection of this crew member in the mirror when Jim-Bob and Ben go at each other. (00:04:25)
Visible crew/equipment: When John-Boy falls off the ladder and breaks his wrist Zeb drives him to the doctor in the truck. During their drive we can see through the window behind them, and there's a crew member wearing a red shirt riding along in the back, as they drive past a parked 1970s station wagon. The camera and its operator are casting a shadow on Zeb as well. (00:18:25)
Other mistake: When Uncle Cody hears the bad news on the radio about the banks remaining close, Olivia suddenly orders the children to clear the table when their plates are half full. Which wouldn't happen in a Depression with food being a precious commodity.
Continuity mistake: When Verdi is sitting on Josh's bed, talking to him about being a man, the medium shot has her face tilted to the left. But in the immediately close-up, it's suddenly to the right as she finishes her comment.
Visible crew/equipment: Camera lights are visible in the reflection of Maude's glasses in several scenes.
The Seashore - S6-E5
Continuity mistake: Maryellen's pregnancy changes during the episode from her natural woman figure to a slight baby bump to a 9-month belly near the end.
Continuity mistake: All of the children, even John and Olivia, seem to have reddish/auburn hair. Their natural hair colors are used in later seasons.
Continuity mistake: Elizabeth's hair length doesn't match while on The Ferris Wheel. The shot from the ground is very long hair 'draped' over the back of the seat. Yet, in the following close shot of her, it is from the chest up, so only the very bottom strands would be visible over the edge.
Continuity mistake: Or revealing mistake: Olivia's hair is suddenly long and braided in its "normal" length after her disastrous perm in the last episode 'The Rebellion'.
Audio problem: A very audible echo is heard when Jon-boy says "I'm trying to work up there".
Revealing mistake: When John Boy goes out of the kitchen angrily, the view of the back is different than what it actually is. From the kitchen, there appears to be the mountain and trees, but when John Boy is outside leaving the kitchen, we know the barn is what we should see from the back door/window.
Visible crew/equipment: Near the start, when John walks out of the barn he decides to check on John-Boy's car so he sets the bucket down. Just as John walks beside his son's car, the reflection of the camera and camera operator wearing a baseball cap is visible on the windshield, as the dolly tracks backward. Even while John checks it, we can see the camera operator's baseball cap turning a few times in the reflection. (00:03:50)
Visible crew/equipment: When John-Boy is on his way to Boatwright and Polly flags him down, just as John-Boy pulls over and then backs up, the reflection of the location's 9-light par bank lighting is visible on his car's windshield. (00:10:55)
The Legend - S1-E11
Visible crew/equipment: After Tip arrives in his automobile John introduces him to the family. Then, when Tip explains that he didn't know the ages or genders of John's children and gets the candy, the reflections of a crew member and the moving boom mic are visible on the hood's chrome surface facing the camera, as well as on the windshield. (00:09:30)
Visible crew/equipment: When Judge Thornbury fails to convince John-Boy to kill the story on his car accident, Thornbury heads over to talk to John at the mill, and just as Zeb says, "Hiya, Judge," the boom mic pops up into view at the bottom of the screen. (00:17:40)
Visible crew/equipment: After Jason tells John that he left word with Ike for the Sheriff, Elizabeth runs into the barn worried about Pete. Then Gino walks over to his T-mark (plastic type) on the dirt ground and a second T-mark (partially covered in dirt) is beside it. Soon, John-Boy walks over to that second T-mark as he glances down to presumably be certain he hits his mark. (00:32:55)
The Sinner - S1-E8
Continuity mistake: After Zeb and Matthew's visit to the Baldwin sisters, when the singing duo arrive at Godsey's store while everyone is watching, the man driving is wearing a different shirt than Zeb and is considerably younger. (00:35:05)
Visible crew/equipment: After Esther scolds Zeb for falling asleep during the earlier sermon Ben tells John-Boy he wants to talk, and at the start of the next shot just as John walks to the truck, we can see black set equipment on wheels on the right side of the screen (in the next wide shot it's gone). (00:28:35)
The Reunion - S1-E14
Audio problem: When John grabs Olivia from the kitchen sink to rejoin the family (over the washing machine snip) the children's laughter sounds more like a canned echo, or studio audience response.
Character mistake: The NCO in charge of the Navy construction crew is wearing a commissioned officer's eagle insignia on his hat. A non-commissioned officer would have one with a Navy anchor on it. This mistake appears in several episodes showing Ben's Navy service.