Not Without My Daughter - S1-E21
Audio problem: In the final scenes where Tobias is shooting at the rats you see the shot blasts after each firing of the gun. On the fourth shot there is no visible blast but there is still an audible gunshot when it happens.
Audio problem: When Michael is walking into the hospital room, he says "Where's the baby?" to Maggie. However, his lips do not match up with the word "baby", and it appears he is saying something else that is not heard. (00:19:00)
Audio problem: Marta is on the stairs confiding in Michael. At one point the camera angle switches and we hear her say "commitment" but her lips are still. (00:10:15)
Chosen answer: "The One Where They Build a House," S2E2.