Ask This Old House Season 22 Episode 18

Lee Gilliam helps a homeowner figure out why grass doesn't grow in his backyard before installing a shade-tolerant species of sod; Ross Trethewey talks through converting houses' heating and cooling systems to heat pumps; Kevin O'Connor meets maker Sarah Nadarajah, the creator of Rocky Canyon Rustic, to learn about her content before building a replica high-end side table.