In this episode, Mister Rogers paints the walls of the television house blue. From Seasons 2-3, the walls were painted yellow with a brown wooden bottom. From Seasons 4-6, The walls were painted a brighter yellow color and the brown wooden bottom was removed. The walls would remain painted blue up until the show's ending in 2001. This is the first episode that used a new city model which was used until the show's ending in 2001.
This episode also introduces a new model neighborhood layout, designed by David M. Smith, seen in the opening and closing credits, that would be used for the remainder of the series.