What's the Matter with Henry - S7-E6
Revealing mistake: In a close-up shot, Henry is very dusty, and fingerprints can be seen on his smokebox.
Thomas the Tank Engine & Friends (1984)
1 revealing mistake in What's the Matter with Henry - chronological order
Starring: Alec Baldwin, Michael Brandon, Ben Small, Martin Sherman, Michael Angelis
Continuity mistake: Despite Henry's issue from "Coal" in Season 1 being resolved after the crash in "The Flying Kipper", also in Season 1, Henry needed special coal again from "Thomas and the Magic Railroad" until Season 16.
Bill and Ben: We're not playing. We're rescuing our trucks.
Thomas' Christmas Party - S1-E26
Trivia: At the end, the podium on which The Fat Controller is standing, is made of LEGO bricks.
Question: Why was Henry put on a barge instead of being taken to the works?
Answer: He was in the water.