I just watched the final episode of this. It's kind of lost it, I think; it's not really holding my sense of humour. The sketches are just a bit over-reliant on the 'wow -- they're kids!' aspect rather than cos they're great sketches. The 'jokey paramedics' stuff is case in point; not funny in my opinion. I quite like the 'mouthing to the songs' stuff. That is always good for sketches (I don't know why; it's not particularly 'funny' in and of itself)
Still, the original pilot episode was really good and enjoyable and, unfortunately, I don't think the series lived up to that.
Dan