Is there any large news network/channel in Eorzea?

[YianKutku]

Isn't it also a reporter for the Raven in the Heavensward Botanist questline? Plus many event quests are handed out by the various newspapers of Eorzea.

Mujih Mewrilah, yes. The sister of Lina Mewrilah, the alleged reporter (also for the Raven) who introduces you to the Prima Vista.

Both sisters share a penchant for over-dramatization of articles and fondness for the Eorzean equivalent of clickbait, so I don't actually know what the writing team thinks reporters are actually like. (Most of it is just the usual mind-numbing tedium of trying to get as much coherent and fact-checked details for a story that we have to put out in time before the editor yells at us. Again.)

The lorebook also has brief descriptions of the three major newspapers of the starter city-states, on page 189 (at the very end of the section on the city-states in general). In summary, Limsa Lominsa's Harbour Herald has the greatest breadth of knowledge, especially in international affairs, due to Limsa's position as a major port. Ul'dah's Mythril Eye has the most accurate and well-researched articles, mostly focusing on market and economic news, for obvious Ul'dahn reasons. The Raven has the fastest and most frequent news updates, presumably because the lore team wanted to complete the trifecta of journalistic goals and Gridania was the only starter city-state left.

No idea what newspapers Ishgard has, but they probably do have at least one, since their middle-class and higher population is relatively well-informed. (And post-HW, a representative parliamentary democracy still requires an informed populace.) Sharlayan probably also has some means of mass media as well, although I would not be surprised if it was more akin to an extremely dry news ticker rather than anything with opinion pieces.

Garlemald definitely has mass media, which is de facto controlled by the government. It would make sense for the major news organizations to be state-run, but even if they aren't, the government can easily control them simply by holding the purse-strings. Hence the official positions of Imperial Censors (title "goe").

[swiss_Momo]

Mujih Mewrilah, yes. The sister of Lina Mewrilah, the alleged reporter (also for the Raven) who introduces you to the Prima Vista.

Both sisters share a penchant for over-dramatization of articles and fondness for the Eorzean equivalent of clickbait, so I don't actually know what the writing team thinks reporters are actually like. (Most of it is just the usual mind-numbing tedium of trying to get as much coherent and fact-checked details for a story that we have to put out in time before the editor yells at us. Again.

You'll even get an extra line of dialogue if you've done the HW botanist class quests

[LineageRazor]

trifecta

To be fair, BOTH Mewrilah sisters didn't even think twice before setting out to another city (one halfway around the globe!) to get the scoop, which seems to be dipping pretty far into the Harbour Herald's "international affairs" territory. Either they're unusually ambitious for Raven reporters, or we can be relatively safe in assuming that all three newspapers do try to get stories outside of their own territories.

I think it's likely that all three newspapers do keep their fingers on the pulse of what's happening worldwide. The Harbour Herald might be better at it, I guess...