Working as a desk assistant in any newsroom is a good entry-level position where you will learn how a newsroom operates and see how the assignment desk monitors the news and sends reporters and photographers to stories.
Alternatively, getting a reporting job in a smaller market will give you reporting experience right off the bat.
I actually did both. First I worked on the assignment desk at Fox News Channel in Capitol Hill for two years and then I moved to Binghamton, New York and learned how to report. After a year there, I was offered my position at Fios 1 News.