I think the things you mention are just more characteristic of rolling news in particular than they are of the media in general, which is incredibly varied in form, tone and reliability. Flashy graphics, soap opera style narratives, shouting for drama etc are all dictated by the economic forces which underpin rolling news, in particular having to generate an enormous amount of material as cheaply as possible, and in effect a competition to get viewers addicted. There is fantastic news and analysis elsewhere, a large part of it in mainstream publications.