The third and final season of Broadchurch returned to ITV on Monday night and became the most-watched program of the evening with 7.5M viewers and a 34 share in Live+1. That makes it's ITV's biggest drama success since November 2015 when Downton Abbey aired for it's final series.

The new series of Broadchurch sees David Tennant and Olivia Colman return to the roles of Alec Hardy and Ellie Miller as the mismatched detectives reunite to solve a new mystery relating to a serious sexual assault. Arthur Darvill, Jodie Whittaker and Andrew Buchan are also among returning cast members, and they are joined by a host of new faces, including Sir Lenny Henry, who plays Ed Burnett, the owner of a local farm shop. Julie Hesmondhalgh plays Trish Winterman, his employee and the victim of the assault that Hardy and Miller must investigate. Sarah Parish also joins as Trish's best friend Cath Atwood, married to fellow newcomer Mark Bazeley  as garage owner Jim. Charlie Higson plays Trish's husband and Georgina Campbell plays new DC Katie Harford who will team up with Hardy and Miller to work on the case.

Broadchurch continues on ITV on Monday