Visible crew/equipment: At the mill, when John tells Buck that Willie Brimmer might be at the Montgomery cabin with Jim-Bob, in the next closeup of John we see a billowy trail of cigarette smoke at the bottom right corner of the screen, but the only people standing there are Elizabeth, John, and Buck, and none are smoking. Presumably, it was someone offscreen smoking too close to the camera (similar to a mistake in 1978's "Halloween"). (00:26:05)
The Waltons (1972)
Episode list - season 1
Starring: Eric Scott, Jon Walmsley, Judy Norton, Mary Beth McDonough
More mistakes in The Waltons
The Reunion - S1-E14
Ike: How's it feel to be a working man?
John-Boy: Ike, Mama would skin me alive! Everyone knows those two ladies make bootleg whiskey.
Ike: But they don't know what they're doing. They're just following their papa's Recipe.
John-Boy: But sometimes they sell it!
Ike: Yeah, but they're just like two little girls by a roadside selling lemonade.
Trivia: While John is reading the newspaper funnies to John Curtis, we hear Erin and Mary Ellen come home, so John puts the folded newspaper down on the couch. And as the newspaper lies on the couch, we can see the large white adhesive label with typewritten sentences adhered to the center of the funnies page. Presumably, these are the actor's lines as he was reading quite animatedly to the toddler (sweet moment). (00:06:25)