I refuse to watch this. I think it is totally wrong and will make people think it's okay to do this. Just like Nadia Suleman (or whatever her name is) having 8 babies just to get a show on TV.
We kept seeing the commercials for it this past weekend (because I watch TLC a lot) and I kept saying "isn't that illegal???".
I like my reality shows (Kate Plus 8 and 19 Kids and Counting) but this is just not okay IMO.

ETA: I just scanned through the investigation link you posted. So apparently it isn't legal in Utah, as I thought. And he is only legally married to one woman. I still don't get it. What's the point!?!? And the article says he has four wives. The previews I saw only showed three.