Serve Food in Far-Away Restaurants--Right From Your Couch

David Tejeda helps deliver food and drinks to tables at a small restaurant in Dallas. Sometimes he lends a hand at a restaurant in Los Angeles too. Tejeda does all this from his home in Belmont, California, by tracking the movements and vital signs of robots that roam around each establishment, bringing dishes from kitchen to table, and carrying back dirty dishes. Sometimes he needs to help a lost robot reorient itself. "Sometimes it's human error, someone moving the robot or something," Tejeda says.