There is a difference between a documentary and a television film, and we have always been taught to distinguish between them. A documentary film is a work based on real events and personalities. A TV-movie is a product that was prepared specifically for the broadcast. It is based on the ideology of profit-making. This product must be watchable, colorful and interesting in order to have a high rating and get more money for publishing advertisement.
Maybe my view of making a TV-movie is a little naive, but I believe that it should stop being a product and start to be called a «work of art». Only by forgetting about the thoughts of profit and money you begin to create truly. The main thing is to keep yourself as an author, as a creator!