The Split BBC1, 9pm

Despite their impending divorce, there’s still a spark between Hannah (Nicola Walker, below) and Nathan, which makes her wonder if there’s a chance of a reunion. However, her hopes are dashed when he drops a lifechanging bombshell. Meanwhile, Rose struggles in the aftermath of James’s death, and Lily Cole guest-stars as a pregnant woman who discovers her sperm donor may be entitled to parental rights. ★★★☆☆