How does Peaky Blinders attract its audience?

Steven Knight's, Peaky Blinders is a BBC2 crime drama, set in 1919. It follows the soldiers who have returned home from World War I and created a an illegitimate business as well as forming a criminal gang. 

One way in which Peaky Blinders attracts it audience is through retrophilia which is 'is a term used to describe aspects of modern culture which are consciously derivative or imitative of those trends, modes, fashions, or attitudes of the recent past which have or had come to be seen as unfashionable.' This complies with the Uses and Gratifications theory, as the audience gains information from the 1919s from this text, whilst enjoying the text as well as learning from it at the same time. Peaky Blinders provides the audience with culturally and historical knowledge throughout the narrative, and an example of this is through the character of Aunt Polly, who has experienced power through men being away at war, and know they are back she wants to restore that power and remain a dominant figure within the shelby family. In the second episode after Tommy has gained a larger turnover after fixing a race, Aunt Polly confronts him on fixing the race without gaining permission from Billy Kimber.