WEBVTT

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Welcome to CNN World Headquarters here

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in Atlanta, Georgia. This is Studio G,

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where I host CNN World Sport. We've got

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you covered. I'm Koi Wire. This is World

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Sport. 30 minutes of moments that make

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jaws drop and hearts race. Pretty

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snazzy, right? Well, if you haven't

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noticed, there's a secret. I'm actually

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standing in a TV studio that's green.

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Everything around me, the walls, the

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lights, the motion, even the screens are

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created by a powerful computer system

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running something called Unreal Engine.

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The same kind of technology used to make

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video games. Listen, before I ever step

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on set, a team designs a digital sports

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world. Kind of like creating a level of

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a video game. They design backgrounds,

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lighting, video screens, and animations.

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All of that lives inside the computer.

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The cameras filming me don't just record

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video. They also send information to the

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computer where the camera is, how it

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moves, when it zooms or pans. So when

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the camera moves, the virtual background

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moves with it, making it feel real.

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That's why it looks like I'm actually

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inside the scene. And behind the scenes,

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operators use real buttons, not

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keyboards, to control everything. One

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button might change the background,

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switch the lighting, bring up a graphic,

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or move us to an entirely new location

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in this enormous room. It all happens

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live while I'm talking to you. My job,

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focus on the story. The computer is

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updating the scene. The cameras and

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graphics are staying perfectly in sync.

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If everything works out right, you don't

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even notice the technology, just the

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story. So, my job is fairly easy

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compared to the rest of my team. And the

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main thing is I have to remember never

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wear green.

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Anything green will display whatever the

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computer is putting out. So if I'm

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wearing a green suit or a shirt or

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bodysuit, this is what we get. Pretty

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cool. Oh man.

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Woo. I'm the head of my class. So when

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I'm long and gone someday and some of

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you come to take my job, remember, never

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wear green. Speaking of long and gone,

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see you.