I highly recommend reading Manufacturing Consent^[wiki]^. It's easy to find free online. It explains how mass media is systematically filtered by five major factors, the first being ownership, which is more and more relevant every year as media outlets consolidate under the ownership of billionaires like Murdoch, Bezos, Musk and Bloomberg, who have very different material class interests to the other 99.99999[...]% of the population.
I highly recommend reading Manufacturing Consent^[wiki]^. It's easy to find free online. It explains how mass media is systematically filtered by five major factors, the first being ownership, which is more and more relevant every year as media outlets consolidate under the ownership of billionaires like Murdoch, Bezos, Musk and Bloomberg, who have very different material class interests to the other 99.99999[...]% of the population.