Celebrities from the world of entertainment join forces as the 2011 charity fundraising event begins, with presenters Michael McIntyre, Claudia Winkleman, Graham Norton, Davina McCall and Dermot O'Leary. There are special instalments of Doctor Who, Outnumbered and EastEnders, while Claudia Winkleman, Ruby Wax and Miranda Hart go head-to-head for Comic Relief Does MasterChef. Joanna Lumley and Jennifer Saunders star in a Downton Abbey spoof, James Corden reprises the role of Smithy in a new sketch, and Harry Hill is joined by some very special friends.