Paul Elliott (I)

David Walliams is joined by Hugh Bonneville for a Christmas special, with the Downton actor playing a grammar-obsessed vicar, a toothsome gameshow host and a yoga guru with anger issues. To his credit, he hurls himself into this sorry business with vim, but even with sketches featuring, in one case, the combined heft of Biggins, the Chuckle Brothers and Bob Carolgees, the material just isn't up to snuff.