We quizzed the Grantchester cast to see who can name all the Keating children. We quizzed Robson Green, Tessa Peake-Jones, and more of the Grantchester cast to see who can name all the Keating ...

Anything "Grantchester"-esque, I will know, come on. (upbeat music) - I'm gonna give you the murder, the storyline, and you tell me which vicar solved the crime.