Unforgotten SEASON PREMIERE Sunday, Sept. 3, 9/8c, PBS (check local listings at pbs.org)

FANS WON’T BE instantly smitten with Unforgotten’s new detective chief inspector, and that’s fine with Chris Lang, the creator and writer of the engrossing British cold-case drama

- Diane Snyder

He anticipated it would take time for viewers to warm up to Jessica James (Sinéad Keenan), who replaces Nicola Walker’s Cassie Stuart in the Masterpiece series’ fifth season following the beloved character’s death. Lang’s solution: to have her still-grieving colleagues, led by Detective Inspector Sunny Khan (Sanjeev Bhaskar, above, with Keenan), also struggle to forge a connection with their boss, even though nine months have passed since Cassie died.