Companies dealing in obsolete technologies shouldn't expect to be around forever.
Local radio survived because it is synonymous with locality and it's free.
Cable is not free, and 99% of it is not local. And gone are the days when everybody works 9-5, gets home, watches the 6 o'clock news, eats dinner from 6:30-7 and then starts watching prime time television. We want to watch it whenever the hell we want.
And even when you tune in via antenna to the local "farmervision" 99% of the programming is not local.
So it's coming time to cut the middle man (cable company) out of the equation. Most of them will survive because they double as internet and phone providers. It's then up to the advertisers and the content producers to quit whining and come up with an innovative way to handle this inevitable change.