Where in the world do you get the idea that Bowfinger's post supports the OP's point? Let us for a moment ignore the "mirror image" rhetoric (these are journalists, after all) and look at the actual numbers from the study.
http://www.journalism.org/node/13437
Fox:
Obama +25 -40 =35
McCain +22 -40 =38
Negative 15 point spread for Obama, negative 18 point spread on McCain. Three point advantage to Obama.
MSNBC
Obama +43 -14 =43
McCain +10 -73 =17
Positive 29 point spread for Obama, negative 67 point spread on McCain. Ninety-six point advantage to Obama!
CNN
Obama +36 -39 =25
McCain +13 -61 =36
Negative 3 point spread for Obama, negative 48 point spread on McCain. Forty-five point advantage to Obama.
All media
Obama +36 -29 =35
McCain +14 -57 =29
Positive 7 point spread for Obama, negative 43 point spread on McCain. Fifty point advantage to Obama.
Fox News gave a slight advantage to Obama in an election where voters also gave a slight advantage to Obama, in fact by about the same margin (since a three percent swing in voters yields a six percent difference in votes.) CNN and the media as a whole gave a huge advantage to Obama in the same election. MSNBC managed to give Obama a continuous Lewinsky whilst also taking up group residence inside The Messiah's large intestine - a whopping 96 percent advantage in tone!
And you think Bowfinger has provided "damning facts" that Fox News is the station with the bias? You, sir, are either a shameless liar or else have the intellect of a banana slug.