Molly refuses to apologize after making some mistakes while hiking in the woods; Rattles takes over Slink's paper route.

D.W. is afraid of octopuses at the lake; Buster discovers an unusual bone on a dinosaur-fossil dig.

The Fred Rogers Company introduces a new animated preschool series featuring Peg and her sidekick, Cat, as they encounter unexpected challenges that require arithmetic and problem-solving skills. Each episode features two stories in which Peg and Cat face a math word problem that they must solve. Children will learn how to build calculation skills and think about larger concepts that will help them form the foundation for learning math at any level, from kindergarten through calculus.

The first series inspired by "Mister Rogers Neighborhood," "Daniel Tiger's Neighborhood" features 4-year-old Daniel Tiger, son of the original program's Daniel Striped Tiger. Every day Daniel puts on his red sweater, ties his shoes, and invites a new generation of preschoolers into the Neighborhood of Make-Believe. Daniel shares his daily adventures with pals O the Owl, Katerina Kittycat, Prince Wednesday and Miss Elaina. With the help of Daniel and his friends, preschoolers have fun and learn practical skills necessary for growing and developing.

Aimed at the toddler and pre-school set, "Caillou" is an educational show that stars the 4-year-old title character (pronounced KY-YOO), who lives with his mother, father and sister in a blue house on Pine Street. Caillou has invisible friends, learns how to play sports and explores nature. Friendly and curious, Caillou discovers as much fun and wonder as any kid can imagine. In addition to the animated segments featuring Caillou's adventures, the show also features puppet skits and videos of children in real-life situations.