If you're lucky enough to run into an HGTV/DIY Network personality while shopping for grass seed, don't run the other way. The happenstance could be your ticket to a brand new backyard. Licensed landscape contractors search home improvement stores for weekend warriors who could use a pro's expertise. Willing participants are then followed home to commence the "crash" -- for two days, the landscape pro and his team of contractors and artisans completely remake the drab backyard into a relaxing retreat worth thousands of dollars. Ahmad Hassan, Matt Blashaw and Chris Lambton alternate as hosts.