The latest episode of MTV’s “The Buried Life” mentions Beneath the Neon. About six minutes into the show, the hosts say they read the book and two of them decide to explore the underground flood channels. They meet Rick (aka “Iron”) and help him reunite with his daughter, whom he’d not seen for several years, and meet his granddaughter.
The tunnels and Rick are only featured briefly (about six minutes in and at the very end), but it’s a touching story, nonetheless.
http://www.mtv.com/videos/the-buried-life-season-2-ep-3-get-married-in-vegas/1649700/playlist.jhtml