Arthur Sells Out Arthur is excited about the release of the new video game Dark Bunny: Return of the Moomies, but doesn't have the money to buy it. When his attempt at online sales through the school newspaper falls flat, Buster recommends getting advice from Muffy. Muffy's sales tactics soon result in great sales, but border on dishonesty and leave Arthur facing an important moral decision. Mind Your Manners After missing Grandparents' Day, Tommy and Timmy Tibble want to do something to nice for their grandma, but their manners aren't up to par. When D.W. refuses to help them, they try practicing on their own with less than stellar results. Then Molly offers some advice that may just be what they need.