64 Zoo Lane was not cancelled. The British-French animated series (based on books by An Vrombaut, not Donaldson/Scheffler) aired 1999–2000 (Series 1) and 2010–2013 (Series 2–4) on CBeebies/BBC—four seasons, 104 episodes.
Premise: Lucy lives at 64 Zoo Lane; each night, animals tell her stories teaching life lessons. Format: 11-minute episodes; distinctive 2D animation; gentle humor, social-emotional learning.
Long gaps between seasons (2000–2010 hiatus). No new episodes since 2013—but that's series completion, not cancellation. The show had a defined run, achieved its episode count, and concluded. Reruns continue globally.
Critical acclaim for animation quality, writing, educational value. DVD/streaming availability. No revival announced—but the complete series exists as a coherent body of work.
Children's shows end; that's not cancellation. 64 Zoo Lane finished its story—104 bedtime tales from the animals next door.