When Noel Edmonds appeared on Friday Night with Jonathan Ross in June he revealed that at that current moment in time (June), Deal or No Deal was filming for October, five months in advance of broadcast.
During the show he also joked that there have been 2 people who have won �250,000. He said that these two shows shall not be aired, but the players have been 'paid off' nonetheless. Apparently Noel often says the same thing at recordings of Deal or No Deal before saying to the audience, "obviously that's not true but just wait - it'll be on the internet within the hour!".
The largest win is �120k from a bankers offer as said above. 8 people so far have won 1p