Visible crew/equipment: After Muffin spends the night at the Walton house, while she and John-Boy are at the Rockfish bus station, when the bus pulls away the reflections of the camera, crew, and equipment are visible on passenger windows. Also, note, the Newport News bus has license plate number "T-3984" which has been used in previous episodes on other vehicles. (00:19:00)
Visible crew/equipment: At the start, when John-Boy walks into his house with a bag of groceries and the newspaper, just as he says hi to his mother the boom pole and mic are visible at the top, left corner of the screen. (00:01:45)
The Carnival - S1-E3
Factual error: After John-Boy reads the scary bedtime story to Jim-Bob and Elizabeth, when Elizabeth is lying in bed she's holding her Raggedy Ann doll, and in the closeup we can see the doll's Knickerbocker tag. This episode takes place in 1933 (the Chicago World's Fair is mentioned at the end), and the Knickerbocker Toy Company created this doll in the late 1960s. (00:09:30)
Visible crew/equipment: Near the end, when John-Boy thinks he may know where AJ has gone he gets into the vehicle with Martin Walters, then as Todd starts driving away the reflection of a reflector screen becomes visible on the rear window, and it looks like the reflection of the boom operator's raised arm is visible as well. (00:46:40)
Continuity mistake: At the end the narrator states that they never see or hear from A.J. again; however, in Season 4 'The Abdication' is about A.J. coming back in connection with a movie for which he wrote the screen play.
Factual error: Jim Bob is shown communicating with friends in the UK via amateur radio. During WW2 amateur radio operators in most countries were prohibited from transmitting any signals until after the end of the war.
The Secret - S4-E16
Continuity mistake: Jim-Bob's birth certificate reveals he was born January 13, 1923; however in Season 3 The Runaway Jim-Bob says his birthday was June 13, 1924. John-Boy was born just before when John was going off to WWI (1917-1918). If Jim-Bob was born at The Beginning of 1923, that would make him 5 years +/ - younger than John Boy. We know that Ben, Erin, Mary Ellen and Jason are all older than Jim-Bob.
Character mistake: When JimBob is talking to Mr. Perkins in the loft of the barn he mistakenly states that he used to share a bedroom with his 3 brothers when in fact JohnBoy had his own bedroom.
The Attack - S7-E18
Factual error: When Ike is in the hospital and is talking to John, he is wearing a plastic ID wrist bracelet for patients. They didn't start using them until much later.
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.
The Secret - S4-E16
Continuity mistake: The view outside Johnboy's bedroom window is a tree within feet when no such tree exists in prior episodes. In fact, all the bedroom windows face the driveway.
Revealing mistake: The wall in Jon-boy's room 'jiggles' a bit as Erin is confiding in Jon-boy about Maryellen, indicating it's either a set piece or an office partition instead of an exterior wall.
The Fighter - S4-E3
Revealing mistake: The Woman spectator at the boxing match is wearing an obvious 1970s fashionable floppy sun hat and dress, instead of an appropriate 1930s style.
Deliberate mistake: In the opening of seasons 2 onwards, there is a photo of Olivia outside the Church with the family. This is a scene from Season 1 Easter Story. However, it had to be from an outtake because the position of Erin, the absence of Jason, is different than what is shown in the episode. It's just something I noticed when I identified from where the shot was taken.
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.
Audio problem: When Todd Cooper says "Good job" to Job-Bob while examining Jim-Bobs wooden plane int he boys' bedroom, it makes a very distinct echo that lingers for almost 30-sec, and then repeats very faintly in the next shot. (00:03:20)
Continuity mistake: Esther's wedding band is missing from her finger while she's sweeping and talking to Maryellen on the stairwell. But seconds later when she heads outside it's suddenly back on.
