Where are CNBC's younger viewers going? Maybe FBN?

Portfolio's Jeff Bercovici writes about the recent decline of CNBC's younger viewers. He says that although the network has had strong growth in its total audience, it has had a reduced number of viewers aged 25 to 54. He questions if the numbers are a fluke or a trend.
One possible explanation might be that some of these viewers have switched over to Fox Business Network, a place where some of CNBC's talent has moved onto as well.
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