Marc Brown's children, Tolon, Eliza, and Tucker, are referenced in the show many times, just as they are in the "Arthur" book series. For example, the town's moving company is called "Tolon Moving", and everyday items such as cups or pencil sharpeners have the word "Eliza" printed on them. References to Cookie Jar Entertainment and WGBH also appear often on the show. In one episode, Francine and Buster are shown playing a table hockey game in which one team's players wear shirts in the Montreal Canadiens' signature colours with Montreal-based Cinar's logo on them (Cinar was the predecessor to today's Cookie Jar Entertainment) and the other team's players wear shirts in the Boston Bruins' colors with Boston-based WGBH's sting logo on them. Subsequent episodes that involve hockey also depict players wearing these sweater designs. Also, in the episode "The Big Blow-Up" in Season 2, a racecar driver wears a jersey with "Cinar" written on it and a car with "WGBH" written on it. In the episode "Prove It" in Season 4, Brain introduces D.W. to science while watching a non-animated episode of "Nova", a science series also produced by WGBH. Brown's son Tolon, for whom Brown first invented the character of Arthur the Aardvark in a bedtime story, is the executive director of the show.