Good TV

Welcome to PBS. I was watching this show tonight, where some people went diving in the aquifer under Florida, while they were radio located by two hikers above. Wacky. They dive into a disappearing stream, and come up in a garbage-filled sink hole a mile away. Meanwhile, the divers stop at someone's well pipe while the locators above them wonder why they stopped- and then notice the well going into the house.

They just found a dead mastedon at the bottom of one of the sink holes. Cool. Really worth watching if you can find it.