well the little unicorn was called somewhat originally, 'Uni'. There was a sporty spice look-a-like who had a magic javlin and a girl with an invisibility cloak.
They did open a portal and got back into our world, but Venger came through too and the had to go back again or he would be loose in our world. ( I used to watch it religiously)
'tj', That's a better answer! Anyone can post a link. In fact yours is more of a 4 Star answer, but since the max stars I can give is 3, there you go. 8-)