Prime Suspect 1973

ITV, 9pm, Thursday

First announced back in 2015, will this prequel to Lynda La Plante’s much-loved crime drama series prove worth the wait?

Early signs are good; the period detail is correct and the cast looks impressive.

The original programme turned Helen Mirren into a household name thanks to her portrayal of detective Jane Tennison; and Stefanie Martini has big shoes to fill as she takes over the role, playing Tennison as a 22-year-old WPC straight out of training.