Getting featured on CNN, NBC, Fox News, Forbes, Washington Post and other authority websites results in getting a backlink from them and moreover getting hundred if not thousands of backlinks from other small but still high PageRank sites. Garnering backlinks from trusted websites result in high ranking and high traffic and a lot of traffic means a lot of money.
How to get featured on popular sites?
Is simpler than you thought my friend, the very first step is to approach contributors (writers) of these sites, search their name and engage with them via their blogs by commenting on articles shared, share their articles and if possible insert a question to get interaction, once you get a reply you can gently ask to get an introduction to post articles on sites like CNN, NBC, Forbes etcetera.
From here it's even easier, once introduced the staff will see you as trusted contributor and they will ask portofoliu and such for getting approved or declined to post on these authority sites. Since your portofolio looks great your articles will be accepted, if declined gently ask if possible to make adjustments that will fit their needs, so... a little bit of change, submit again and chances are your article get accepted. Mission succeeded!