Last Monday, flicking through the channels on my television in search of BBC Two’s excellent programme on the Battle of the Somme, I found myself faced with an array of naked male buttocks. They were being assessed by two clothed women, one of whom had to select, through a process of elimination, which appealed to her least. I had inadvertently landed on Channel 4 and a programme called Naked Attraction, “a new dating show in which mate-seeking singletons get to check out a line-up of potential partners posing in the nude”. The torso and legs of the contestants were hidden by a screen, but when instructed, they turned so that their genitals could be scrutinised too.