Factual error: When Elizabeth asks Zeb how Vanessa can be happy, Zeb has his old catalog with a bunch of flower seed packets on his lap, and as they both hold up the packets, particularly Elizabeth, the modern Universal Product Codes are at the back of the packets. The UPC did not exist until many years later. (00:10:05)
The Waltons (1972)
Episode list - season 1
Starring: Eric Scott, Jon Walmsley, Judy Norton, Mary Beth McDonough
More mistakes in The Waltons
John Walton: I hate this draft job, Liv. I can't stand playing God to my neighbors' sons.
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)