I think I see Google doing some testing. In one browser I’m getting 1.19 billion results for “world video news” and in another browser I’m getting 586 million. Both are logged in with the same account, both are getting facebook results pulled into the results, etc. It’s not browser-specific though because when I open a new incognito window in Chrome and open facebook, I get the lower number of results. I’m going to keep playing with it to see what I can come up with.