Best TV mistakes of 1964
Plot hole: In order to build up suspense, Virgil and Brains stand on the Crab Logger as its dangerous fuel is pumped out, despite the fact that it is hanging on the edge of a precipice. In fact they could have left as soon as they had plumbed in the pipes to empty the fuel tanks - the whole procedure is controlled by Scott in Thunderbird 1 and they make absolutely no contribution to the operation at all. They do not need to disconnect the pipes; they are left behind and dropped from Thunderbird 1 as planned. They just stand there chatting about how much danger they are in until jumping clear at the very last second. Silly buggers.
Plot hole: Solo blows open the ceiling vent of Illya and Marion's cell, and she stands on Illya's shoulders until Solo can reach her and pull her out. This leaves Illya with nothing/no one to stand on, no way to reach the vent and no apparent way out of the cell. But he's out just the same in the next scene, with no explanation as to how.
Continuity mistake: When Drake is leaning against the back of the park bench while talking to the tailor, in the shots over his shoulder, his watch is partially covered by his shirt cuff. In the shots from in front, his watch is completely exposed, despite his arm never moving.
Continuity mistake: Bud is lying on a surf board, talking to Flipper. During different camera angles, his position on the board changes. He goes from the middle to almost the top. At the end of the scene, in the wide-shot, he's always to the end of the board. He also goes from being centered with a foot on each side of the board to being on the left-side with just that foot in the water.