Something like this montage but more variety
Very Fake News | Clinton will power through it | Talking Points
And their collusion has been outed before. Remember the "Journolist" listserv discussing how they would "spin" (ie trash) Sarah Palin when she first hit the national scene in summer '08?
I believe Brent Bozell's Media Research Center does exactly what you're referring to, on occasion. Though I don't know if they do video clip montages. Those take longer to put together than text excerpts of written transcripts.