Forget Line of Duty — Unforgotten is the best police drama on TV

Almost a decade into the streaming revolution it’s remarkable that almost 10 million people interrupted their (admittedly locked down) Sunday evenings to settle in to watch the latest series of Jed Mercurio’s police corruption drama Line of Duty — more than double those who tuned into the once unsurpassable Christmas Day soap specials. It’s a testament both to Mercurio’s skill in…