Harold's Fairy Tale

While this story doesn't have any Dungeons or Dragons, it does have a Castle, a King, a Fairy, a Giant Witch and a famous Purple Crayon (along with a familiar Crescent Moon).
Yes, it's "Harold's Fairy Tale", by Crockett Johnson - the first sequel to his most famous book, "Harold and the Purple Crayon".
This animated adaption was produced by Weston Woods Studios, and was aired on Eureeka's Castle under Weston Woods' "Children's Circle" banner.
We apologize for the poor sound quality.