First if you're going to quote a whole paragraph from another source, you need to provide attribution and put it in blockquotes:
We find once again this year that Democrats trust everything except Fox, and Republicans don't trust anything other than Fox. Democrats put the most faith in PBS (+61 at 72/11), followed by NBC (+45 at 61/16), MSNBC (+39 at 58/19), CBS (+38 at 54/16), CNN (+36 at 57/21), ABC (+35 at 51/16), and Comedy Central (+10 at 38/28). Out of the non-Fox channels Republicans have the most faith in PBS at -21 (27/48), followed by NBC (-48 at 18/66), CNN (-49 at 17/66), ABC (-56 at 14/70), MSNBC (-56 at 12/68), CBS (-57 at 15/72), and Comedy Central (-58 at 8/66).
http://www.publicpolicypolling.com/main/2013/02/4th-annual-tv-news-trust-poll.html
And from that same source, the Poll says that
PBS is the most trusted network. In fact PBS is the
ONLY network that people have more trust than distrust -
NOT Fox.
PPPs annual poll on TV news finds that theres only one source more Americans trust than distrust: PBS. 52% of voters say they trust PBS to only 29% who dont trust it. The other seven outlets we polled on are all distrusted by a plurality of voters.
Just like its actual ratings, Fox News has hit a record low in the four years that weve been doing this poll. 41% of voters trust it to 46% who do not. To put those numbers into some perspective the first time we did this poll, in 2010, 49% of voters trusted it to 37% who did not. Fox has maintained most of its credibility with Republicans, dropping just from 74/15 to 70/15 over that period of time. But its been losing what standing it had with Democrats (from 30/52 to 22/66) and independents (from 41/44 to 32/56).
The conclusion one reaches from the data is that Republicans are the ONLY group that ONLY trust their OWN tailored message.