I recently discovered willo the wisp classic episodes are available to watch for free on youtube.
I had these previously only on vhs tape, so it's really good to finally see a proper digitised version.
That would be episode one, follow the original poster to see the rest.
Whilst we are following that line of interest, here's The Trapdoor:
And then. Metal Mickey.
Educating Marmalade is next.
Then, of course, Chocky...
I'll vanish again now I've hurt your 'ead. :)