Original air date: 2 September 1986
The children discover elbows and knees. They look at how penguins walk, then do some exercises with their arms and legs. Postman and the traffic cop demonstrate how they wouldn't be able to do their work without elbows and knees. Pieriewierie has a surprise in the Wonderboom: two little ballerinas.
Original air date: 9 September 1986
Grethe is very lonely today. She reckons that everybody has friends except for her. Pieriewierie teaches her that humans aren't the only kind of friends - you can also make friends with animals. Postman comes for another visit, and so does Sonja. Parkie is on holiday, but he has sent a letter to all his friends in Pieriewieriepark. In the Wonderboom we learn about more kinds of friends, and Bravo and Crescendo sing a song about friends.
Original air date: 16 September 1986
We learn that while some things float, others sink when put in water. Parkie teaches us that some things float more easily in salt water than in fresh water, and we learn more about the Dead Sea. But poor Mr. Postman then takes the wrong water glass and gets a nasty surprise!
Original air date: 23 September 1986
Pieriewierie is making a birthday calendar. It's not divided into months, but rather into seasons. Bravo Brak and Crescendo Kat sing a song about the different seasons and Parkie, Sonja and Mr. Postman play a guessing game. In the Wonderboom, ballerinas represent the seasons with dance.
Original air date: 30 September 1986
Wietertjie, a doll, pays a visit to Pieriewieriepark. The children enjoy seeing what the doll can do with his arms and legs and try to copy him. They also learn that there are many things that they can do that Wietertjie can't, such as talk, breathe, make sounds and eat. They learn more about the human body and Bravo and Crescendo sing a song.
Original air date: 7 October 1986
The children play with music notes, Parkie tells the story of Tannie Trippel-Trippel Muisie's birthday party, everybody holds a concert for Mr. Postman, and there are wonderful gifts from uncle Porrieworrie.
Original air date: 14 October 1986
It's Mr. Postman's birthday! Sonja and Parke have bought him some presents and everybody helps to wrap them. Sonja, Parkie, Grethe and Stephan play Shop Shop and learn more about the different kinds of shops where the gifts were bought. Mr. Postman arrives and is very happy to get his gifts and cake.
Original air date: 21 October 1986
Finale. Uncle Porrieworrie has sent an electric piano, and Pieriewierie is making all sorts of sounds on it, like bird sounds and a clap of thunder. Sonja and Parkie show us how to make our own instruments at home.