On May 10th 2010, Sky News' political editor Adam Boulton and Tony Blair's former communications chief Alastair Campbell locked horns during an infamous head to head broadcast.
Ten months on, they're at it again, live on Sky News, discussing the coalition government, books and the Chilcot inquiry.
Watch it live, in high definition, from 1pm on Thursday 20th January or here: www.skynews.com/politics