The Crab with the Golden Claws: Part 1 - S1-E1
Continuity mistake: When Tintin is wondering about the drowned man, the Crabe Extra tin and the Japanese man, there is a desk visible next to him that is dark brown. When his phone rings, the desk is now a much lighter brown. A cord also suddenly appears on the phone. (00:07:20)
The Crab with the Golden Claws: Part 1 - S1-E1
Other mistake: When Tintin discovers the torn out part of the wrapper, Tintin asks "What are these?" and one of the detectives reply "Objects found on a drowning victim." At this moment, the Thompsons are shown holding six files in their hands, but the way they are shown holding it would never be possible. This is mainly due to the fact that the second file is located on top of another file to the left, but there are four others on top. These four files are creating too much weight and would have fallen over. (00:03:35)
King Ottokar's Sceptre: Part 2 - S2-E5
Audio problem: When Tintin says the detectives should question the professor, one of them says "precisely" without moving their mouth. (00:35:10)
King Ottokar's Sceptre: Part 2 - S2-E5
Continuity mistake: You'll notice that there are bars in the windows of the place King Ottokar's scepter is held. During the interior shots, the bars are about 10 cm X 8 cm. But in exterior shots, the bars are way bigger. (00:34:45 - 00:35:15)
Revealing mistake: When the scientists are eating their dinner and begin to get sea sick, one of them has a glass of wine. The wine slides along the table, yet the wine in the glass stays in a fixed position. (00:10:40)
The Calculus Affair: Part 2 - S1-E13
Continuity mistake: The Italian driver's car has a number plate on the left front of his car. In the shot where he drives through the bushes, no numbers are seen on the plate. (00:30:15)
The Black Island: Part 2 - S1-E11
Continuity mistake: After Mueller is untied, he opens his drawer and takes out a gun that is blue. Shot cuts and he then cocks a gun that is now grey. (00:41:20)
Explorers on the Moon: Part 1 - S3-E11
Audio problem: Captain Haddock's mouth doesn't move when he says "Relax? Relax?!" just after Calculus says they have to start the calculations.
Chosen answer: It is a pill that makes alcohol taste disgusting.