Here is the link. Tab down and I think it says market watch videos. The first one is Dr. Phil and the 2nd one is entitled "Firestarters." That is the one on the young couple. I think their estimate for monthly expenses was a little over 2K.
Yes, they have solar power, no kids and they do talk about the 4% withdrawal rule.
https://search.yahoo.com/search?p=ww...p=mss&ei=UTF-8