In the episode, Cincinati Kids, where Mike takes the family to Kings Island, at the beginning of the show at the amusment park, some of the family take a ride on the roller coaster. Jan and Bobby are in the front seat, Carol and Alice behind them and Greg and Marcia behind them. At the end of the show when Mike gets his sketches back, he suggests a ride on the roller coaster. They then show a clip of the family on the roller coaster..it is the SAME clip as at the beginning of the show.