Hogan's Trucking Service... We Deliver the Factory to You - S4-E4
Audio problem: When Crittenden is figuring out military time he asks Hogan how much four and six are. The answer doesn't match Hogan's lips.
Guess Who Came to Dinner? - S4-E9
Audio problem: When Hogan says "Why is it you can only trust short, dumpy spies?" the movement of his lips does not match the words.
Will the Real Colonel Klink Please Stand Up Against the Wall? - S4-E13
Audio problem: When Carter, dressed as Klink, approaches the staff car, Bruno the dog starts barking at him. Watch the dog's mouth. It doesn't match the noises at all.
Answer: It's a comedy, not a documentary.
stiiggy
Perhaps it was counterfeit. There are numerous episodes where they deal in counterfeit monies.