After yesterday's preparations, Shona and Tim are gearing up to start shooting in our Live Studio space at Somerset House. There's already a crowd of exhibition visitors gathered in front of the two-way mirror - for those of you that can't make it down, you can watch all the action via our our live stream until 21:00 GMT. The husband and wife team will also be using the studio tomorrow between 10:00 and 21:00 GMT.