Visible crew/equipment: After Ike goes off to help Jim-Bob and Jason with the antenna cable, just at the moment it cuts to John-Boy on the porch, at the start of the shot, on the right side of the screen we can see the shadow of someone's arm motioning to the young actor who is playing John Curtis, so he can open the screen door to step onto the porch at the correct time. (00:39:40)
The Waltons (1972)
1 visible crew/equipment mistake in The Threshold - chronological order
Starring: Eric Scott, Jon Walmsley, Judy Norton, Mary Beth McDonough
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)
Olivia: Now I've got two sons working nights in a saloon.
The Journey - S2-E1
Trivia: While Maggie MacKenzie and John-Boy are at the Mermaid Restaurant, when they both dance together Maggie envisions her long deceased husband, Michael MacKenzie, dancing with her instead of John-Boy. It is Earl Hamner Jr. who portrays Michael MacKenzie in this uncredited onscreen cameo during the scene (note teeth and facial features are identical).