David Walliams has invited comedian Harry Enfield to be his 'Friend' and the result is a masterclass in sketch. Together they appear as John Torode and a rather fussy Gregg Wallace in MasterChef, portray a hilarious pair of ageing lotharios and take a look back at some of Harry's comedy characters that never saw the light of day, until a certain David Walliams got his hands on them. Adding a touch of royalty to proceedings, Her Majesty the Queen is surprised by her own family history when she takes part in the genealogy show Who Does One Think One Is?