“There’s a little company that made those lights and we were showing them off,” says Jack. “They’re kind of cool. They’re like a blow-up tube with a fan inside and light. They give off a lot of light. We can see the mine at night. It’s like $5,000 to $10,000 for each light.” (Photo: Discovery) Watch full episodes, Set Your DVR and Add to Queue here. The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.