Trick or Treat! Nick Jr.'s favourite friends are dressing up and celebrating Halloween with a special marathon featuring their best spooky adventures! Programs include Dora the Explorer, Yo Gabba Gabba, Curious George, Dinosaur Train, Go Diego Go, The Wonder Pets, Super Why, Ni Hao, Kai-lan plus two new Australian premiere episodes of Bubble Guppies & Team Umizoomi.