Professional journalism, even online, shouldn't rely on YouTube, where their contents get mixed with an overwhelming amount of amateur ones, except for quick, low-cost advertising of their true sites.
I read many online news quite regularly, and I never look for them on YouTube.
The only (un)professional YouTube channel I happen to watch quite regularly is Vevo, but I avoid it if I can as I deeply despise it for its medieval region locking policies, not to mention its bad habit to more often than not presume to "improve" the original sound of old music with a new equalization. Other music channels are less annoying, but they nevertheless tend to get lost in the ocean of contents uploaded by common users.
Last, but not least, YouTube search tools totally suck, they're not suitable at all to search anything more complicated than artist names and song titles.