The Life Against Death Raid - S1-E2
Audio problem: The motorcycle/sidecar and jeeps' tyres sound like they're screeching on asphalt, when the vehicles are actually in deep sand.
Audio problem: 1897: Quentin challenges Barnabas by pulling a decorative sword from a wall display and pointing it at his throat. Unfortunately, the display wasn't all that well attached to the set wall. Though the camera pans away, you can hear a loud clunk as the piece falls, followed by the loud crash of shattering glass as it strikes and breaks a table lamp. You can also see the actors struggling very hard to keep straight faces as they continue with their lines.
Audio problem: When LeGallows complains that the road is unendurable, his lips don't move at all. (00:20:15)
Audio problem: Joker's TV debut as an opera singer isn't very convincing. Even through the partially-obscuring clown mask, you can see that his lips aren't moving at all. (00:22:30)
Audio problem: When Kirk demands to know who the Troglytes are, his voice is dubbed over: his lips don't move at all. (00:04:05)
Audio problem: In his closeup, Tony asks Alexis, "How did you get our names?", but his mouth does not move.
Arthur, the Invisible Bear - S2-E4
Audio problem: When the station wagon pulls into the mountain clearing there is no movement with the trees indicating they are on a sound studio, as some of the dialogue is acoustic. (00:24:00 - 00:24:30)
Audio problem: When Barney and Willy are digging their tunnel toward the prison basement, Barney's voice and lip movements are badly out of sync. (00:31:05)
The Monkees Get Out More Dirt - S1-E29
Audio problem: When Micky says "Ah, my aunt!", the audio starts half a second before Micky opens his mouth.