Sunday-night dramas on the two main terrestrial channels definitely aren’t what they used to be. Not so long ago, you could bid farewell to the weekend with a reliable cocktail of lovely scenery, eccentric but good-natured rustics and plots carefully designed to warm the cockles. Now we have The Gold on BBC1 providing a meticulous analysis of recent economic history – while on ITV1 the new series of Grace began with an episode that hinged on one simple question asked early on: ‘What kind of sick mind dresses up in a full latex bodysuit and assaults his victims with a...