A television studio, somewhere near Waterloo. A young man, in clerical collar and odious pullover, is tippytoeing around a set that purports to represent a deep cave, some 15m years old, in which he is trapped. And he is singing – solo, a cappella and at the top of his voice – Bohemian Rhapsody. “Scaramouch!” he bellows. “Scaramouch! Will you do the fandango?” … Sorry? What do you mean, why? You might as well ask why two dozen bunny rabbits suddenly materialise in the living room of a homely parochial house and nobody finds it peculiar. Why is because we are here to record an episode of Father Ted, the most surreal situation comedy to be screened since British television’s year dot.