Oh and one of the wives was not raised in a polygamist family.
You are right. One of the four said she was a LDS, but said it wasn't a big jump FOR HER for whatever reason from LDS to Fund Mormonism.
I too would like to see a show concerning polyamory where the people involved don't have the salvation of their souls to worry about motivating the choices they make.
And for either style of show, I wish they shared more about the one on one negotiations each wife has with the husband in the care of their concerns and the choice to take on a 4th. There seemed to be a big difference between the way the wives discussed the impending addition of the fourth in front of the husband and how they discussed it amongst themselves in his absence. When they would get upset in front of him, he'd just sort of stare at them with a concerned look. I was left wondering how he assures them, how they reach agreement and/or resolve; I have trouble believing the concerned look was all there was to it.