SEASON PREMIERE: Dominic West, as smug British TV news anchor Hector Madden, is the best reason to watch this British period drama, a mash-up of Mad Men and The Newsroom – but there are plenty of other good reasons, too, including Romola Garai as his show’s producer, a lot of intrigue about what’s happening in the news in 1957 London, and boisterous visits to a local nightclub, where the production numbers look like outtakes from the fantasy sequences of The Singing Detective.