Visible crew/equipment: When the Charlottesville taxi parks in front of Godsey's store the taxi door opens, and the reflection of a crew member is visible on the door's window. (00:02:40)
The Sinner - S1-E8
Visible crew/equipment: At the start, while Miss Prissom and Matthew Fordwick are driving to the Waltons they are alone in the vehicle, but when Miss Prissom tells Matthew about the Buddhists from her village, we can see the hand of a crew member moving around behind Miss Prissom. (00:02:25)
Visible crew/equipment: After the Colonel tastes the Recipe and asks about it, when Polonius tells his friend that the "secret" is the Recipe machine, the shadow of the moving boom mic is visible over Polonius. (00:31:10)
The Carnival - S1-E3
Continuity mistake: When Esther breaks her eyeglasses, in the closeup as John-Boy picks it up half of its right lens is gone, but in the wideshot as he hands the glasses to Olivia that lens is still intact. (00:03:20)
The Carnival - S1-E3
Continuity mistake: While John and Zeb are making the train arrangements with Sam, just as Zeb calls Homer an old priss Sam opens the clock dial's top hinged glass door in the wideshot, but in his next closeup that door is suddenly shut and it's the pendulum's bottom glass door which is now wide open. (00:29:55)
Continuity mistake: After Elizabeth tells her mother that nobody cares about her, while she sulks on the porch there's a wideshot of the girls playing catch with Holly, then as the camera is dollying out Holly's mother comes into view at the left and she's wearing a sweater, but in the next closeup the sweater has vanished. (00:32:40)
Visible crew/equipment: When Ep comes to take Holly away John changes his mind, and when he invites Ep for coffee we can see the T-mark (plastic type) on the ground, where Esther and Zeb will stand in a moment. (00:14:45)
The Homecoming: A Christmas Story - S1-E1
Visible crew/equipment: When Olivia calls for John-Boy he jumps from his bed and hides his journal, then as he heads to the door the shadow of the boom mic dips way down into view. (00:27:25)
The Homecoming: A Christmas Story - S1-E1
Visible crew/equipment: While John-Boy is upstairs writing in his journal about growing taller, when it cuts to Esther and Zeb downstairs, the shadow of the moving boom mic is visible just as Olivia wonders about John-Boy's whereabouts. (00:48:35)
Factual error: When Olivia gets polio, she is at home. John is allowed to stay with her 24/7. It seems unlikely that the doctor, even if not taken to hospital, would allow John to stay in the room and risk contamination.
Revealing mistake: When Maryellen runs into John-Boy's arms (after running away) Richard Thomas (John-Boy) breaks character as he looks into Judy's (Maryellen) eyes, by swallowing hard. Like a guy would do, when he's close to an attractive girl. Then later covers his groin with the cast, when John and the kids check up on him. The two young actors playing Jon-boy and Maryellen crushed on each other behind the scenes.
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.
The Carnival - S1-E3
Revealing mistake: When Jonboy, Jason, Ben, and Elizabeth are trying to lure the monkey down from the tree, the leash it's tethered to is visible down the tree trunk. But then disappears after the monkey climbs down.
The Carnival - S1-E3
Visible crew/equipment: Near the end, when the clowns are performing their act for the Waltons, the monkey's leash is visible as it makes it way across the tightrope, before jumping down.
Factual error: When John-Boy and Jason walk into the theater, there's a poster for the movie Breakthrough, released in 1950, which is about the Battle of Normandy that didn't even happen until Summer 1942. This episode was set in early 1934. (00:50:55)
The Townie - S1-E24
Deliberate mistake: When Ted sees Ep's roadblock he turns the LaSalle Coupe around to avoid the sheriff, and the next wideshot of Ted and Sarah driving the LaSalle down the road is a flipped shot, note everything is backwards. (00:36:45)
The Legend - S1-E11
Other mistake: During close-ups of the kids, Maryellen is the only one of the girls wearing very visible eyeliner and mascara, that weren't apparent in earlier episodes.
