Pretty sure you've all seen this on PBS.From Amazon:
The Navajo heritage of sacred songs, ceremonies and spoken tradition comes alive as you meet Chauncey and Dorothy Neboyia, grandparents to an extended family of two generations. The Neboyias live by farming and weaving; their home is a native hogan. This acclaimed documentary captures their traditional lifestyles, and features striking photography of Arizona's ancient Anasazi ruins and the spectacular Monument Valley.
Videos are here