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Trivia
McGarrett didn't use his iconic phrase "Book 'em, Danno" until the seventh episode of season one. See more...
Deliberate "mistake": Throughout series: Five-O was said to be Hawaii's state police force, and was shown headquartered in the Iolani Palace. For decades, tourists were disappointed to learn that in reality, Hawaii had no state police, and that the palace was a state museum, not a state police station.
Audio problem: Throughout series: "Hawaii Five-O's" favorite sound effect was squealing tires, and the effect was nearly always added whether McGarrett's big black Mercury actually "peeled out" or pulled away at a normal speed. More than once, the tire squeal sounded when the car was sitting on beach sand. Nice trick - if you could do it. But alas, you can't "burn rubber" on a beach.






