My Best Friend's Mistake - S1-E3
Audio problem: When Dr. Cox is yelling at Dr. Reed and he's saying, "For the love of Aisha," he's mouthing the word God, but "Aisha" which was dubbed over. (01:02:40)
Audio problem: Clark listens to his father and Earl talking in the hospital through the visitor window. The sound is the same volume and quality as when Earl was using the microphone, which he is not using now. Even if Clark used super-hearing to eavesdrop, it wouldn't sound the same as the microphone. (00:18:35)
Audio problem: When Aetius first displays the Roman legions to Attila, the soldiers are marching out of step with the beat of the drums. Also, at the wedding of Attila and Ildico, the beat of the music is very much out of sync with the dancing and hand-clapping.
Day 2: 2:00 A.M.-3:00 A.M. - S2-E19
Audio problem: When Tony tells Michelle that he told the president about the chip Jack found, they cut to a different angle, and Tony is still speaking, but his lips aren't moving.
Audio problem: After Frohike says "There must be a file dated the day of Jeff's murder", his lips are still moving but no sound is coming out. (00:15:15)
Day of Days - S1-E2
Audio problem: When Easy are attacking the 88 battery, in the scene where Buck scouts out what's ahead of him before throwing grenades, you can see a soldier holding an MP40 (machine pistol), who fires one shot with the sound effect of a Kar98 rifle. (00:31:50)