Come on, did you really buy his bullsh*t Friday night explanation? In reality, it was all a very simple (but ingenious!) split-screen camera trick, dressed up as something else. This is my 2nd version of the explanation, updated with new evidence.
Don't believe Derren - he's a magician. He makes money from fooling us! He's how he really did it. There was a slight technical glitch during his performance on Wednesday that gave it away. Plus, this technique has been used many times before. Derren's just a very good PERFORMER and ACTOR and he dresses it all up very well. All credit to him - but unfortunately he DIDNT predict the lottery results - he just used a clever camera technique.....