Oh !! They don't. Its "recorded" live then they play it up on the show to make it appear that it is happening right now. It happened days, sometimes weeks before.I think he means, what type of communication protocol/methods are they using to get crystal clear video from these "live" situations all across the country? Satellite? LTE/Cellular? "How does the video crew transmit the high-def video back to their HQ for the show?"