An 18-wheeler with the HGTV logo may be pulling up to your house to unload the surprise of a lifetime: a full home makeover designed by an HGTV star. Viewers who uploaded a video and photos of their rundown rooms and boring backyards have a chance to be chosen for the show, with the over-the-top transformations overseen by such network stars as David Bromstad, Genevieve Gorder, Sabrina Soto, John Gidding and Vern Yip. To be "HGTV'd" is to become the envy of the neighborhood.