The Gavin and Stacey star (but we'd prefer to remember her for the work on [the first series of] Nighty Night) presents a feast of comedy and chat, with writer/actor/general annoyance Ricky Gervais, comedienne Miranda Hart, singer Will Young and the Script, who are spreading themselves around the place good oh. The first of four specials to be shown over the next 12 months, it promises a mix of celebrity interviews, musical performances, sketches and festive fun.