Speaking from the UK, the state controls the media.

There are rules that a few select channels like BBC have to be prominently placed (I.e. Channel 1-4 reserved for them) which means any rival News service is disadvantaged.

And presently they are passing new laws to force Youtube and similar to change algorithm's to also make certain UK content providers prominent.

UK Media know what they can and cannot talk about- for example Judicial Corruption.

> You are in fact wrong - see the myriad of rules advertising, especially what can be advertised on children's TV.

That hasn't to do with the addictive design of the broadcast medium, which is what I commented on. There are myriad of advertising rules for social media as well.