On the subject of the show itself, I have to say I didn't bother with it because I could see what it was going to be like from the trailers (and by the BBC's reputation of recent decades).
I think you can present science and technology in an informative and accessible way, without dumbing it down to the level of a 5-year old and thereby turning off a sizeable sector of your audience. Does anyone remember Adam Hart-Davis's Local Heroes? That's how it should be done - presented by someone who is knowledgeable, enthusiastic and informative, and without too much interference from meddling bosses.
Unfortunately even he eventually became somewhat dumbed-down by his masters...