[effie]

I observe this as well, however, because Google wants to catch your attention and keep you for as long as possible, it is quite possible that this is also because of the past view history or terms you search. That is, if in the past, you let play lots of videos from traditional media, or search things traditional media like to talk about, then this may reinforce their appering in the search results.

If you watch videos on space flights and search related terms all the time, I expect you'll get related recommendations and links on less mainstream channels.