6/10 Vet Steve Leonard meets Dee the seal, whose rotten teeth have become a serious problem.
6/13 Kai, Sami, Abigail and Olivia attempt to bake the ultimate lemon drizzle cake in an hour. (R)
6/30 Nurse Morag has the Healthy Helpers running around a paddling pool with green feet. (R)
11/20 Andy travels back 145 million years to the time of allosaurus. (R)
Experimenters Grace and Sultan meet a champion snooker player. (R)
8/26 A look at Eddie, a baby Asian elephant living in the woodlands of lowland India. (R)