Children's animation in which the trains talk, think and don't need drivers. Koko decides to try for the high-speed badge - something no trainee has ever won. Show more
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Children's animation in which the trains talk, think and don't need drivers. Koko decides to try for the high-speed badge - something no trainee has ever won. Show more
The UK's most watched and most loved channel for the under-sixes, dedicated to delighting and surprising its pre-school audience.
