Ask This Old House

Landscape contractor Roger Cook helps a young couple transform a muddy backyard into a low-maintenance play area for their two children. Then, up in the loft, plumbing and heating expert Richard Trethewey shows host Kevin O'Connor several different types of portable space heaters and offers suggestions on how to choose the right one. Then Roger, Kevin and Richard are joined by general contractor Tom Silva for the regular "What is it?" segment. Afterward, Tom helps a homeowner with a bathroom fan that drips water down into the room.