Ofcom
Ofcom is the Independent regulator and competition authority for the UK communications industries.
There is a wealth of information in the Ofcom annual Children's Media Literacy Report and the Children and Parents: Media Use and Attitudes Report on the devices children are using, what they are using them for, how frequently they use them and how attached they are to each particular device.
Children's Media Foundation Appeal https://mailchi.mp/acabc4a05e04/childrens-media-foundation-appeal?e=11d36c0067
https://www.legofoundation.com/en/learn-how/knowledge-base/children-tech-play/?
Kids round-up: Wildbrain, Kevin Smith link for ‘Green Hornet’; Planeta Junior takes ZAG stake; ‘Oddbods’ goes global – TBI Vision https://tbivision.com/2020/07/31/kids-round-up-the-green-hornet-to-fly-again-as-wildbrain-teams-with-kevin-smith-moonbug-becomes-largest-digital-kids-ent-company-planeta-junior-takes-stake-in-za/
Children's Media Foundation Newsletter July 2020 https://mailchi.mp/337435748c31/childrens-media-foundation-newsletter-july-2020?e=11d36c0067