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SD Public Broadcasting: Dr Chris Anderson
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SD Public Broadcasting: Dr Chris Crowd
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SD Public Broadcasting: Dr Chris Talking
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SD Public Broadcasting: Jake Talking
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SD Public Broadcasting: Science Steve Nerd Night
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SD Public Broadcasting: Steve's Air Cannon Duel
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SD Public Broadcasting: Steve Big Water Balloon
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SD Public Broadcasting: Steve Balloon
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SD Public Broadcasting: Steve Shooting Rings
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SD Public Broadcasting: Steve Showing Off the Air Cannon
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SD Public Broadcasting: Steve Talking to Crowd
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SD Public Broadcasting: Steve Teaching
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SD Public Broadcasting: Steve's The Man