Audio problem: In the courtroom, after Roy and John defib the patient who was in full arrest, when John's on the Biophone with Rampart, he says, "We've countershocked 400 watt seconds," but as he continues to say, "Scope now shows...," John's mouth is not in sync with those words.
Audio problem: When Station 51 is dispatched to the brushfire, we hear Roy tell Johnny, "Holly Hills, isn't that where all the expensive homes are," but we see that Roy's mouth is saying something entirely different.
Answer: It is standard practice to wet down driveways so that they stand out in a long shot.
stiiggy