The event supposedly runs until 4 o'clock this afternoon (though if The Lost Boy ends like expected at 3pm, what will they show during the last hour*?!) - so if it's been a while since you last viewed these episodes, or want a refresher, or if you think they're just plain fab, get watching them now!
That's the CBBC Channel - running until 4pm.
*According to reader MacMachavelli, they're simply repeating Invasion of the Bane again from 2:55pm. D'oh! They could have rounded off Maria's era by showing The Last Sontaran!
Ahead of Nabu's report about Saturday's trip to the SJA event (at Manchester's Trafford Centre) here's another little tease. Yesterday I gave you one word, and just one word. The word in question? Orange. But what does it mean...?
Well, here's your answer!
MEET... THE BLATHEREEN!
Yep, that's right. As exclusively revealed at the Trafford Centre, the Blathereen (who - SPOILER! - appear in the third series finale, The Gift) are a fab orange!
Trust me, they completely suit the colour, too.
Come Christmas, you'll be saying orange is most definitely the new green...