Deliberate mistake: Due to the production order, Arthur can be seen at the quarry, but his introduction is 6 episodes later, in "The Spotless Record."
Thomas the Tank Engine & Friends (1984)
1 mistake in Bill, Ben and Fergus
Starring: Alec Baldwin, Michael Brandon, Ben Small, Martin Sherman, Michael Angelis
Bill and Ben: We're not playing. We're rescuing our trucks.
Trivia: The events of this episode were remade in CGI for the 2015 special, The Adventure Begins.
Question: Why was Henry put on a barge instead of being taken to the works?
Answer: He was in the water.