A split-screen, as-live comparison between What Was Happening On BBC One While Derren Brown Was Doing His Thing On Channel Four (or in this case, More4), and Derren Brown Doing His Thing On Channel Four. Or in this case, More4. This proves that, yes, it was properly live. My guess for how it was *really* done: E-ink on Derren’s balls. And that’s not a sentence you get to use very often outside of the ‘adult entertainment’ industry, is it? Actually, he probably had just concealed an invisible man inside Camelot HQ, who’d then clambered inside the machine at 10.25pm. Tsk, what a cheat, eh? ANYWAY, More4 on the left, with sound, muted BBC One feed on right.