Speaker Robert Mckee compares writing for television to writing novels and plays in this screen writing speech. He claims that script writers need to be prepared to have their work changed. When it comes to television and film, producers don't always stick to the script. Mckee says that if dialogue is extremely important to a writer, than they should focus on novels or play writing.
Mckee states that even unpublished works have value. A writer progresses as they continue to work, and while not all of their works will be published, they lead writers to producing their best works. Practice really does make perfect in terms of writing, be it script writing, books, or theater.
Mckee goes through the upsides and downsides of script writing in this interesting speech.