Yeah, from the looks of things the Teletubbies logo was supposed to go on the title screen but it's not displayed for some reason. I remember back in the late 90s there was a *lot* of fake Teletubbies stuff knocking around and the BBC tried to crack down on it, maybe Gamtec removed the logo to avoid any trouble?
The other games using that engine don't actually use the official titles of the stuff they're based on either - Pocket Monster is called Pocket Monster rather than Pokemon or Pikachu or anything (Pocket Monsters was official in Japan but nowhere else, and I doubt they were intending to sell the game in Japan), and Panda World doesn't use the name "Tarepanda" anywhere.
That might account for why it's called "Super PoPo's Adventure" not "Super Po's Adventure" come to think of it.