Why do TV Host personalities make so much money?

Becoming an expert in a specific topic can increase the yearly salary of a television host and open doors at networks. For instance, former congressman Joe Scarborough's knowledge of politics led to a career as a television host on MSNBC's "Morning Joe." Trial attorney Greta Van Susteren's expertise in the legal field resulted in a television host position on the Fox News network, where she earns seven figures.