ALT: a girl with long black hair is wearing a sailor suit with a purple bow

The unseen pilot footage marks the 80th anniversary of the British franchise which became a global hit among multiple generations of young children.

ALT: a house is flying through the air with balloons

ALT: elmo from sesame street sitting at a table with a purple cup and straw

ALT: a man in a military uniform with a mustache is wearing a beret and making a funny face .

ALT: miss piggy is wearing a blue jacket and a white bow tie

ALT: goku and krilin from dragon ball z are hugging each other

ALT: a woman in a pink dress stands next to a woman in a black hat

ALT: a man with his arms outstretched and the words he 's baaack on the bottom

ALT: a cartoon character is standing in front of a crowd and says `` let it die , let it die '' .

ALT: a bunch of stuffed mice are sitting on the floor in a dark room .