Weird kids' TV of my childhood

Found a nice new blog, Wyrd Britain, which is full of supernatural stuff and folk horror - specifically I was interested in the latest post, about The Witches and the Grinnygog. I'd thought I knew all of that sort of children's TV series made in Britain in the 80s, but apparently not. Watched it on YouTube and I don't think this one will be getting a DVD revival for the reasons the blogger points out, but it was an interesting curiosity.

Then, through the IMDb page for the series, I came across this Den of Geek article: Spooky and magical 80s kids' TV dramas which mentioned a few more that I'm unfamiliar with. There's also some interesting stuff suggested below it which will enchant anyone of the right age to remember Look and Read...