Aaaagh! It starts next week (Jan 21st in the US - when is it on Sky One?), so I thought I'd get another thread on the go, as I just read this article:
which has some good speculation. It's going to be all about the time travel! Exciting? Infuriating? Bring it!
Also, does anyone know what the crack is with this? It's the 'new alternative reality experience' referred to in the article above.