Photo via Disney+ Television has become strangely anxious about its own behaviour. Contemporary drama increasingly appears to be designed by wellness consultants and data analysts. Characters explain their trauma in perfectly articulated therapy-speak. Sex scenes are cautious and worthy. Even the messiest antiheroes tend to possess a lingering self-awareness, as though permanently conscious that social media may eventually judge them. Rivals , thankfully, has no interest in any of this. Beneath all the silk shirts, infidelities and competitive horsemanship lies the suspicion that Britain’s ruling class behaves rather like Labradors who’ve somehow been introduced to the pleasures of cocaine and fast money. Nobody is learning. Nobody is growing. People are simply pursuing one another through the Cotswolds at tremendous velocity. Judging by the first episode of season two, Rivals remains reassuringly committed to the world Jilly Cooper created.…