The TV show actually originated in Spain, not the UK. However, there was no specific language labelled to this wonderfully magic cartoon, everybody could understand it because, simply, there were no words!
There was always a cute, fun storyline to each episode, and with it only lasting under five minutes, it was one of the most spectacular kid's shows around.
Airing (in the UK, from what I know) on Cartoon Network at around 5 or 6am, I know many people who awoke just to see the fly's newest adventures.
However, sadly, this is one of the numerous cartoons that people forget.