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Globe Staff illustration/istockphotoThe New England Aquarium's new high-def TV spots highlight the new tank.
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The ads are the first time the aquarium has gone on TV to promote itself since the 1970s.
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Extreme details are captured with high-speed cameras.
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David L. Ryan/ Globe StaffThe aquarium's new 200,000-gallon tank, as seen from above.
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Brian SkerryThe aquarium's new tank, as seen from below.