Uses and Gratifications
The theorists Blumler and Katz (1974) identified several gratifications an active audience can get from looking at media products.
a) Escape from Reality - people can get involved in the texts in a variety of ways
b) Social interaction - people can discuss what they've seen with their friends/colleagues, while watching the show and afterwards
c) Identity - people can identify a part of themselves in a media text through character or circumstance
f) Evaluating self against character
How many of these can you apply to crime show fans?