My children (3,5,8) and I absolutely love this show. We’ve been watching one new episode every 1-2 weeks and they’re perfectly happy with rewatching. My eldest is able to understand most of it so we’ll rewatch again in 2 (and 4) years so the younger two can follow along. It’s a real treasure and I’m so thankful it exists (and is translated)
As a heads up, NHK tends to remove videos from their site, probably due to contract stuff. It seems Texico starts expiring next year. Sometimes they “rebroadcast,” but for peace of mind make sure to download a personal copy.