The list
UK kids channels: all 13
Channels with a full guide come first. Where to watch the others live, and whether that works abroad, is not checked yet.
More
More UK TV
All 218 channels on our UK TV list
Kids TV channels in every country
The list comes from our UK TV page: the guides were checked on the broadcasters' own pages, the other channels come from Wikipedia and Wikidata and are listed as kids channels only when their own entry says so.

