There are two main types of TV pilots you can write. However, you should have both original pilot and spec TV scripts in your portfolio. TV writers should never try to submit a spec TV script to the producers of the TV show they want to work on. Writing TV scripts for existing shows are only used as samples and for submissions to contests and TV writers workshops or fellowships. It can either be for an existing TV show or your original idea. Do you want to write for television? You can start by writing a TV script.