Apparently, the full episodes of the “Dr. Phil” shows are not available online. However, they did post summaries of the shows on the official website. This first one (below) focuses on the tunnels and a couple’s life down there. The second focuses on the woman, Cyndi, and her four daughters, as they reunite in the studio.
I still have not seen the episodes, but, judging by the summaries, they’re pretty moving. Here you go: