As much as we denigrate it and talk about the "new" means (like the Internet) of transmitting information, it is still the establishment media outlets that have the lion's share of impact on how our population thinks about events. That may have changed at the margins, but their impact is still greater than all other information sources combined.
It's why rebels and invading armies alike first get their hands on the TV and radio stations.
And it's why our own invading army, the left, "owns" ABCCBSNBCCNN, etc....