BBC Four HD

Programmes start at 7.00pm.

The quarter-final stage of the tournament begins. Two teams are looking for the first of the two wins they need to advance to the semi-finals. Jeremy Paxman asks the questions.

Quiz show with Victoria Coren in which connections must be made between seemingly unconnected things. Three polymaths take on a team of board games players.

In a world exclusive, Professor Alice Roberts follows a decade-long historical quest using cutting-edge research that reveals Stonehenge's oldest secret.

Andrew Graham-Dixon feels the pulse of contemporary American art from New York to LA. Contains some strong language.

Robert Hughes considers how the Civil War industrialised society, bringing steam power, the Brooklyn Bridge, plutocrats and an urban underclass.

The story of how Vienna, triumphant after the Ottoman threat receded at the end of the 17th century, was transformed from a fortress into a great cultural capital.