Why is the TV show 'SMart' called 'SMart'?

There's a long-running BBC TV show called SMart. It's about art and it's aimed at children. So why the name 'SMart'?

Well, obviously, the word 'smart' contains within it the word 'art'. So far, so good. It's just that capital 'M' that bugs me.

I would have gone for 'SmArt'. I can also see the argument for 'SmART' - or even just 'Smart'. But 'SMart'?

Perhaps 'SMart' stands for 'Super Magic Art' or something similar. Wait a minute, though, that would give us 'SMArt'...

So many alternatives!