I've been curious about this for a while. I'm in my early twenties and I can honestly say I never watch cable news in large part because I don't really watch TV. Everything is on Hulu, Netflix, or I just stream/torrent. So I get my news pretty exclusively from the internet which is to say usually Google News aggregation of articles related to a term I search or just the BBC news app in the morning.
I'd also say I'm not that atypical of people my age that I know. In fact I'd say its rare for me to run into someone my age who watches CNN, FOX, MSNBC except those who watch certain shows or commentators.
With all of the passion about which network is more biased or best it got me wondering if even unscientifically I could find out if there was an age gap on this on DP.