Alexander Armstrong will appear on Alan Carr's 12 Stars of Christmas, on Monday 19th December at 10pm on Channel 4.
12 Stars... is being broadcast over Christmas week. Three celebrities will compete every night to win hundreds of prizes for the studio audience, taking turns to choose doors from a giant advent calendar, Behind
each door is another celebrity armed with a question about the highlights of
the past 12 months..Also competing on the same night as Xander are Alesha Dixon and Rob Beckett, and the questions will be posed by Miranda Hart, will.i.am, Matt Lucas, Jessica Ennis-Hill, Roger Moore, Little Mix, Bear Grylls and William Shatner.