Victoria Coren Mitchell is back in the host's chair for a one-off special of Only Connect, the series where knowledge will only take you so far. Patience and lateral thinking are also vital.

Two favourite teams from previous series return for a very special musical episode of Only Connect. A team of Festival Goers take on a three members of the Nuestra Singers. They compete to draw together the connections between things which at first glance seem utterly random.

So join Victoria Coren Mitchell if you want to know what connects Columbus (Buenos Aires), Phoenix (Venice), The Staircase (Milan) and Big (Moscow).

Victoria Coren Mitchell is back in the host's chair for a one-off special of Only Connect: the series where knowledge will only take you so far. Patience and lateral thinking are also vital.

Six favourite contestants from previous series return for a special themed around doctors. The battle is on as a team of NHS professionals take on a team of Doctor Who fans in a competition to draw together the connections between things which, at first glance, seem utterly random.

So join Victoria Coren Mitchell if you want to know what connects Clive Jackson, Robert Howard, Mac Rebennack and Andre Young.

Victoria Coren Mitchell is back in the host's chair for a one-off special of Only Connect: the series where knowledge will only take you so far. Patience and lateral thinking are also vital.

Two favourite teams from previous series – one from the north and one from the south - return for a very special episode with a geographical flavour. They'll compete to draw together the connections between things which at first glance, seem utterly random.

So join Victoria Coren Mitchell if you want to know what connects Hong Kong and La Quiaca, Rock of Gibraltar and Mangawha, Jakarta and Bogota [almost] and North Pole and South Pole.

Victoria Coren Mitchell is back in the host's chair for a one-off special of Only Connect, the series where knowledge will only take you so far. Patience and lateral thinking are also vital.

Two favourite family teams from previous series return for a family-themed Christmas special. It's a festive affair with snow on the ground as the Edwards Family square up to the Wrights in a competition to draw together the connections between things which, at first glance, seem utterly random.

So raise a glass and join Victoria Coren Mitchell if you want to know what connects a Johannes Vermeer painting, Jenner's cowpox inspiration, Tess Durbeyfield's profession and a gift on the eighth day of Christmas.