boomer audience
You would be correct about the boomer audience. Largest consumer of cable news is 55 or older. I think those live broadcast habits evolved in the 60's-70's. Turn on, tune in, drop out.
I think the last cable news I watched was on a treadmill in a gym about 5 years ago. We can't watch it at home because we don't have a way to watch it. No dish or cable. We never had cable and the dish was gone about 10 years ago.