Here's a bunch of videos kinda related to the post below (Isaac vs. Ishmael):

Sister-Wife Part 1



Sister-Wife Part 2



ABC News Report - House of Yahweh Preacher



Another group similar to the one above : The End of the World Cult




Report on Swaziland, It's King & It's Traditions like Polygamy



Without The King (Swaziland's Absolute Monarchy)