After a little antiquing at The White Elephant, Norm and Kevin help Tom install interior screens and a Dutch door. Electrician Allen Gallant shows off the exterior lighting and generator, and homeowners John and Julie Corcoran give a grand tour of the beautifully decorated "English cottage" with interior designer Keith Musinski. In the second half of the hour, on ASK THIS OLD HOUSE, Kevin travels to Chicago to learn how subway trains are serviced. While in Chicago, he helps a homeowner paint kitchen cabinets. Then, Roger teaches how to estimate landscape material by the cubic yard. Afterward, Richard installs a smart thermostat to reduce energy use.