Adverts are made to draw in audiences and create an initial suspense. In The Killing this is used to show the dark nature of the show and show its genre.
Within No Offense, the producers created an advert that had already been tested and was similar to other Detective/Police shows featuring crime and murder, and this was how they got the audiences attention.
The Uses and Gratification’s theory may come into play with The Killing as it is a show full of suspense that does not relate too much to real life, so audiences may watch to escape their own mundane lives.
The television programmes are both within the Crime genre although they have different tones.