This is an attack on Fox News, a network Nas denounces as visual cancer. The song was written as a consequence of Fox News commentator Bill O'Reilly's denouncing Nas' participation in a memorial concert at Virginia Tech as an "insult to the victims" of the shootings in 2007.
Spin magazine asked Nas about the line in the song concerning how Fox News makes him want to donate to PBS. The rapper replied: "I love PBS! I grew up on it. If I had to say which channels were good, I'd say, you got your PBS, your History Channel, your Discovery."
On July 23, 2008, Nas teamed up with the activist group Color of Change to protest Fox News, accusing the network of racism. Nas read a statement in front of their headquarters in New York City, and claimed to have over 600,000 signatures on a petition to back up his position. Fox News made this statement in response: "Fox News believes in all protesters exercising their right to free speech, including Nas, who has an album to promote."
Nas performed this on the Colbert Report on July 24, where he was interviewed among the boxes of petitions he brought to the Fox News protest.
The lyrics, "Only Fox that I love was the red one" is a reference to the popular black comedian Redd Foxx, who starred in the TV show Sanford and Son.