I really don't watch enough TV to know about the impact. In my experience as a TV writer, I would say is the exact opposite - it's very constricted, all having to conform to a form. My sense of fiction writing is not to think about rules but to be driven by the characters and their stories. I often ask myself what's at risk here, who needs what, and how are they going to get it. There has to be a reason for the reader to stop living their own life and start reading your book.