Mrs. Pepper Pot - Season 1 Episode 103 rainbow slide
Overview: Aunt Spoon goes to the forest to pick strawberries. She meets Mikkel the fox in Ameyadori's cave, and is forced to lead her to a place where there are lots of strawberries. When the old lady suddenly looked at the sky after the rain, there was a rainbow. The lady says, "There are a lot of strawberries just across the rainbow," and Mikkel says, "Then, please let me see you go across the rainbow."