Audio problem: In the highlight reel that comes before the opening, Mac's computer does a scrambled electronic sound different than the cleaner bleeping sound used in the actual episode. (00:00:05 - 00:11:50)
Audio problem: Magnum found Eric at the abandoned building. In their unlikely chase, at one point Magnum gets by a railing he ducks underneath to get - questionable - protection. If you look at the left of the frame, you can see the puff of smoke and debris that would imply a bullet being fired, but there's no audio for that. (00:28:50)
Audio problem: When she comes around at King Kamehameha and especially in the scene by the tidal pool, Rebecca Holden's lines are very noticeably dubbed in.
Audio problem: When Tobin receives the call from across the street, the agent in the long shot is talking without moving his lips. (00:02:25)