This Sunday, the Gosselin clan of Jon and Kate Plus 8 will welcome Planet Green's Renovation Nation host Steve Thomas into their home to retrofit it with some eco-friendly upgrades. Steve and his crew will help install electric solar panels and solar thermal panels onto the house, as well as solar powered lights along the driveway. They'll also build a picnic table for the family using reclaimed wood. Of course, the kids will also lend a hand (or 16) with the projects, and learn a few things about being green. Unfortunately, the hefty needs of the large household are not helping the family's carbon footprint! Catch the special at 9 p.m. EDT this Sunday, April 19, on TLC.