Tonight the new season of the documentary series P.O.V. debuts on PBS, with an episode called "The Smith Family":

The Smiths of Salt Lake City may have America's most common surname, but their story is anything but ordinary. With two boys, a dog, a nice house and a strong commitment to the Mormon Church, Steve and Kim Smith believed they had achieved the American dream. But after nine years of marriage, shattering revelations of betrayal came—enough to test the strongest bonds of faith and love. When Steve confessed to infidelities with men, and they both find they are HIV+, Kim makes an unlikely choice. "The Smith Family" is a searing account of one family's struggle to preserve family and faith, while redefining forgiveness in the face of daunting tragedy.

It's on at 10:00 pm tonight Eastern time. Go here to check your local PBS station's schedule