With one of the local stations having pre-empted a couple of hours of network prime time this week, it got me thinking back to when I was a kid. When I lived in Montgomery AL in the early '80s, the local cable system had a dedicated channel that was a "fill-in channel" (I think, if I recall, that's actually what it was called). It used to carry network programming from out-of-market signals when one of the locals opted out. It actually carried "Good Morning America" live by relaying WTVM 9 Columbus GA each morning (GA in the Eastern time zone; Alabama in the Central). Outside that, for example, if then local CBS affiliate didn't carry a CBS show, it would import ch 8 Selma (which following an upgrade is Montgomery's CBS affiliate today) or ch 42 Birmingham, for example.
Does any cable system still do this? We moved on to the military base there shortly after. That system didn't have such a channel, but unlike the city system which carried only the local signals, the base system carried a out-of-market affiliates for the 3 networks (aside the local ABC, CBS, and NBC affils, you got CBS from Columbus, NBC from B'ham, and ABC from Columbus and B'ham) full-time. They later decided to split WTVM with superstation WOR in New York (sometimes WTVM and sometimes WOR -- mostly WOR except for local news on WTVM).
Does any cable system still do this? We moved on to the military base there shortly after. That system didn't have such a channel, but unlike the city system which carried only the local signals, the base system carried a out-of-market affiliates for the 3 networks (aside the local ABC, CBS, and NBC affils, you got CBS from Columbus, NBC from B'ham, and ABC from Columbus and B'ham) full-time. They later decided to split WTVM with superstation WOR in New York (sometimes WTVM and sometimes WOR -- mostly WOR except for local news on WTVM).