Snaking Speaker Wire; What Is It? Planting a Tree

General contractor Tom Silva helps a homeowner snake wire for a pair of outdoor speakers. Together they run the wires behind a wooden baseboard, under a baseboard radiator, up a stud bay, and through the exterior wall of her house. Back at the loft, Tom, landscape contractor Roger Cook, plumbing and heating expert Richard Trethewey, and host Kevin O'Connor try to identify an unfamiliar object in the "What is it?" segment. Then, Roger and Kevin head outside to plant a magnolia tree in front of the barn.