Can't remember the title of this children's show in the early 90's?

Can somebody help me please. There's this children's show I used to
watch in the early to mid 90's and I thought it was called The Magic
Box , but I googled that and nothing came up. But I think the show
started with this big box and then it opened and all these things
started coming out of the box and there was a theme song playing and I
remember some of the words to the song and it went something like:
"You've got the key ... open the lock...(something) the magic box and
(something something) there are clowns and (something) , funs and
games..."
The show was all about kids stuff like they have parts where they
would tell the stories of some popular kid's stories like I remember
Rumplestiltskin, and that story of this Princess who never smiled. And
the way they presented these stories was through pictures and it
wasn't re-enacted or anything.
They also had a segment where they have this song for the alphabet and
for each letter they would have a word that starts with that letter.
Anyone remember this?