Nickelodeon has announced season renewals for three of its top-rated animated preschool series: Blaze and the Monster Machines, PAW Patrol and Shimmer and Shine.

The pickups—which entail fourth seasons for PAW Patrol and Blaze and the Monster Machines, and a third season for Shimmer and Shine — total more than 65 episodes and are part of the network’s largest preschool content pipeline ever.

Nickelodeon currently has more than 10 preschool shows in production, with six new series set to debut through 2018.

Season four of Blaze and the Monster Machines will run for 20 episodes, while the fourth season of PAW Patrol will include 26 episodes produced by Spin Master Entertainment that focus on citizenship, social skills and problem solving.

Shimmer and Shine—returning with 20 episodes—features a social-emotional curriculum that highlights the importance of teamwork and resilience in overcoming obstacles. Products inspired by Shimmer and Shine, created in partnership with Fisher-Price, will launch in July.

Last month, as part of its multi-year strategy that has doubled its preschool programming over the last five years, Nickelodeon announced the launch of four new series and three specials, including a pair of Blaze and the Monster Machines ones that debuted earlier this month.