Last night I watched a boxed set. Parade’s End is a small box set as box sets go, and quite old, but my snobbish vow never to watch one is broken. The lead character, Christopher Tietjens, played by Benedict Cumberbatch, is an old-fashioned Tory aristocrat. His wife and almost everyone else in the film takes against him, offended by his uprightness, his anachronistic virtues, his always being on parade.