H20:just Add Water Who Else Watches H20: Just Add Water In The UK?

Who else watches H20: Just Add Water in the UK? - h20:just add water

I do, and I wondered if anyone knew why Nickelodeon shows that even a few episodes and was then available and after a few weeks later, shows another 3 or 4 and then stop again? There are so many episodes that never made to see to reach them all, at this pace!