In fact I was referring to something even earlier -- although the far Left did kick up a fuss about that resignation of some random Shadow Cabinet Minister or other live on TV -- and the article that I was thinking of dates back as far as a year ago:
http://www.theguardian.com/commentisfree/2015/jan/20/broadcasters-mouthpieces-of-elite-balanced-news-journalists?CMP=share_btn_fb
It did only show up on my facebook feed at the end of December, and then in a "Jeremy Corbyn for PM" page that a friend of mine liked. The comments section was full of such as "I've said for several years the BBC are the mouthpiece of the government, but think Sky are too ... in fact I only watch [Russia Today] and Al Jazeera for news", or "I see no reason why the B.B.C. needs to exist. Close it down" (from a left-winger!), and some complaint about how the BBC had hired the "old estonian [sic] mate of David Cameron" Nick Robinson, and so on.
The irony of an article in the Guardian complaining about media bias aside, the basic problem seems to be that everyone these days has trouble processing the idea that (valid) differing opinions or perspectives can exist. People on the right might point out the trend common among younger people for "safe spaces" free from dissent, or no-platforming certain people -- is it really all that different from their shouts of "brainwashing" or the like? In a "safe space" you never even hear the different opinions. By calling out others for being brainwashed, you may still hear but you need never listen. The end effect of stifling, sometimes legitimate, debate is the same.