Liar is a British thriller television series created by Harry and Jack Williams, and co-produced by ITV and SundanceTV. The series stars Joanne Froggatt and Ioan Gruffudd as two people whose initial attraction leads to far-reaching consequences for them and their friends and families. The series premiered on ITV on 11 September 2017, with the first series concluding on 16 October 2017. It premiered on SundanceTV on 27 September 2017. Upon its debut, it received positive reviews, with many critics praising the performances of Froggatt and Gruffudd. The programme was renewed for a second series set to premiere in 2020.

Line of Duty is a British BBC police procedural television series created by Jed Mercurio and produced by World Productions. The first series premiered on 26 June 2012 and became BBC Two's best-performing drama series in ten years with a consolidated audience of 4.1 million viewers. The second series broadcast began on 12 February 2014; its widespread public and critical acclaim, led to the BBC commissioning a further two series. The third series broadcast began on 24 March 2016, and the fourth on 26 March 2017 on BBC One. The fifth series was completed at the end of 2018 and broadcast began on BBC One on 31 March 2019. The BBC has ordered a sixth series.