Revealing mistake: When the elephant is loaded into the truck, the tracks abruptly end behind Charlie.
Fergus Breaks the Rules - S7-E18
Revealing mistake: A wire is under Fergus when he arrives at the smelter's.
Revealing mistake: The old engine's model, who fell off the bridge, was actually Skarloey's, as some red paint can be seen.
Revealing mistake: When Gordon falls into the ditch, wires under his cab are visible.
Revealing mistake: When Samson crosses the Vicarstown Bridge, there is no shadow effect on his face.
Gordon Takes a Tumble - S6-E17
Continuity mistake: When Gordon leaves the docks, he has his lamp, but in the next scene, it disappears.
Revealing mistake: In a shot of Duck at the smelter's, a hole is visible on his running board.
Fergus Breaks the Rules - S7-E18
Continuity mistake: When Fergus arrives at the smelters and escapes, his lamp is on his right side. When he hides in the siding, his lamp is on his left side.
Gordon Takes a Tumble - S6-E17
Continuity mistake: In the first two shots, people are standing to the right of Thomas and Gordon respectively, but in the third shot, they have been replaced by cars.
Revealing mistake: When Toby tells the Fat Controller about the broken windmill, his driver's head appears to have been digitally added.
Other mistake: In the first shot of Brendam Docks, there is a siding that is inaccessible from the other tracks.
Other mistake: The Breakdown Train to the left, in the opening scene, is derailed.
Revealing mistake: The end of the set is visible in one shot at the quarry.
The Great Little Railway Show - S24-E3
Continuity mistake: In one scene, Rex disappears and is replaced with Mike.
Cleo the Road Engine - S24-E17
Continuity mistake: Thomas' brake van changes design. From a black to an orange one.
Thomas' Animal Friends - S24-E20
Continuity mistake: Whem Thomas passes by Crovan's Gate, James' side appears to be silver.
Revealing mistake: When Stepney is returning home through the fog, the source to power his lamp is visible.
Revealing mistake: In a close up of Stepney at the beginning, his lamp iron has a burn mark.
Wrong Road - S2-E22
Revealing mistake: Wires to power the lamps are very visible on Gordon's and Edward's buffers, and bulbs are also sticking out from both their lamps.
Visible crew/equipment: The reflection of a crew member's face is visible in the window of Edward's cab when his driver cheers him on.
Answer: Butch the breakdown truck must have pulled Gordon's tender all the way up the rails so the breakdown train can reach it and also Butch helped to get Gordon close to the winch.