Two things. Where did you find this and second, is it pro conservative or pro liberal?
You can't possibly believe that this is pro-liberal.
It is neither. It is pro freedom, and shows how large media conglomerates control what is said on TV news shows across the country - down to the exact words said by the hosts. And the coordinated messaging goes across networks, so news shows from Fox, NBC, CBS, etc. have people saying the exact same thing.
Did you watch the clip? It shows that the news we consume is far from independent. Its largely a monolith. Is that pro conservative or pro liberal? Try making a judgement on your own instead of having to ask others to think for you.