Most of my exposure to Telugu films was thanks to the India’s national TV channel DoorDarshan. When I was a kid there was only the local TV station which was in Hyderabad and used to broadcast only a few hours everyday.
While the programming was mostly terrible, the good part used to be the movies they showed. There used to be a Hindi film and a Telugu film shown during the weekends, and they were mostly from the B&W era, and very rarely a few recent films.