I am also not a big fan of the show, to much waste an hoopla, even though it has a good premise, helping people in need.
On Greening the show?

I saw fluff and gingerbread only on the Yazzi family (Navajo reservation) last night. yes the solar & wind is green(and sexy), but what is missing and what they never even talked about was "Energy Efficiency" and building the house so that it wouldn't need as much energy to operate.
I only build with Structural Insulated Panels (SIPs) and using them on a house like this would make a world of difference in energy consumption.
I continue to wait for the "EE" to get into Gr n building like it should be. If you are not building a truely energy efficient home or building, then the rest is nice and pretty, but it's just fluff!
Gary