This is taken from a fantastic piece in 'The Believer' mag, in which Nick Hornby interviewed David Simon - the mastermind behind 'The Wire', 'Generation Kill' and 'Treme'. This is a great quote, a great philosophy, and I think forms a kind of rallying cry for how HBO's drama changed TV storytelling for the better.
My standard for verisimilitude is simple and I came to it when I started to write prose narrative: fuck the average reader. I was always told to write for the average reader in my newspaper life. The average reader, as they meant it, was some suburban white subscriber with two-point-whatever kids and three-point-whatever cars and a dog and a cat and lawn furniture. He knows nothing and he needs everything explained to him right away, so that exposition becomes this incredible, story-killing burden. Fuck him. Fuck him to hell.
Full interview can be found here