The Crab with the Golden Claws: Part 1 - S1-E1
Audio problem: As Snowy chews through the ropes keeping Tintin tied up, Tintin removes them and then says to Snowy "We've got to find a way off this ship. We've stumbled into a real hornet's nest, here." Snowy then replies with a bark, but his mouth is completely sealed shut and there is a rope in his mouth. For Snowy's bark to be possible, his mouth would had to have been open. (00:13:15)
The Crab with the Golden Claws: Part 1 - S1-E1
Audio problem: When Thomson and Thompson are phoning Tintin to tell him about Daws and the Karaboudjan, Tintin hangs up and makes for the docks. Thompson then says "He hung up" and Thomson starts tutting. Neither of their lips move during this line or the tutting. (00:07:50)
The Crab with the Golden Claws: Part 1 - S1-E1
Audio problem: After Tintin has removed the Crabe Extra tin from Snowy's nose, they continue to walk to Thomson and Thompson's office and Tintin is shown chucking the Crabe Extra tin in the bin. The sound of the tin actually hitting the bin is not heard, but the sound of the tin settling in the bin is heard anyway. (00:03:15)
Tintin in Tibet: Part 1 - S2-E6
Audio problem: Tintin wakes after having his nightmare and causes mayhem across the room. Haddock later says, "You were dreaming about that crash on the news" somehow without his mouth syncing up with the speech during the second half of this line. (00:03:55)
King Ottokar's Sceptre: Part 2 - S2-E5
Audio problem: Tintin shouts "No!" after he's told to get arrested. His mouth becomes out-of-sync mid-sentence. (00:29:25)
King Ottokar's Sceptre: Part 1 - S2-E4
Audio problem: When exiting the plane, Tintin says "I have to find out the truth." His mouth stops when he finishes saying "out." (00:14:55)
King Ottokar's Sceptre: Part 1 - S2-E4
Audio problem: When Tintin leaves Hector's apartment to be stopped by a man asking the time, Tintin says it's 11:20. His mouth stops moving half way through the "eleven." (00:03:55)
The Broken Ear: Part 2 - S2-E3
Audio problem: When an Arumbayan tribesman hits Tintin with a golf ball, Bridgewell says "I'm very sorry, I should never have started to teach them golf." His mouth is out-of-sync on the "golf." (00:36:35)
The Broken Ear: Part 2 - S2-E3
Audio problem: At the rapids, Tintin catches a log and uses it as a bridge. He says "This is our only chance" without his mouth moving on the "This is." (00:35:30)
The Broken Ear: Part 1 - S2-E2
Audio problem: A man returning the parrot to Tintin says "I hope this is the right bird". His mouth stops moving before he could he say "bird". (00:09:40)
The Broken Ear: Part 1 - S2-E2
Audio problem: The curator realizes the Arumbayan idol has gone and shouts out "The idol!" His mouth opens but never moves again during the line. (00:02:25)
Audio problem: Tintin places part of the meteorite on the raft. When it lands, it makes a sound as if it landed on a wooden floor. The raft is made of plastic and has air in it. Not the landing sound you'd expect. (00:20:15)
Audio problem: The Aurora crashes into a ship. As Tintin and Haddock fall over, a glass related smashing sound is heard. There is no glass there to cause it. (00:11:30)
Audio problem: When Tintin first sees the telescope, he says "What?" His mouth is out-of-sync when he says this. (00:02:50)
The Calculus Affair: Part 2 - S1-E13
Audio problem: When Tintin, Haddock and Calculus exit the hospital, Haddock says "Blistering barnacles, I'm glad to be out of there. The food was terrible". His mouth doesn't move when he says "The food was terrible". (00:25:50)
The Calculus Affair: Part 1 - S1-E12
Audio problem: When Haddock and Tintin resurface, he realises the driver and Snowy haven't. He then says "They haven't come up". His mouth is out-of-sync at least twice in this line. (00:15:20)
The Calculus Affair: Part 1 - S1-E12
Audio problem: After the bullet is shot at Calculus's hat, Tintin says "That sounded like a gunshot... outside". After he says "gunshot...", his mouth starts moving as if he is speaking before he even starts to say "outside". (00:06:40)
The Calculus Affair: Part 1 - S1-E12
Audio problem: Haddock says "Take a whiff of that fine fresh air". His mouth doesn't match what he says. (00:01:35)
The Black Island: Part 2 - S1-E11
Audio problem: Thomson and Thompson go "Stop, Tintin. Stop" after noticing Tintin on a plane. Their lips never move during their lines. (00:31:05)
The Black Island: Part 2 - S1-E11
Audio problem: When Tintin finds the villains' crashed car, someone nearby says "I saw them dash off". His mouth is out-of-sync when he says "off". (00:27:50)
Chosen answer: It is a pill that makes alcohol taste disgusting.