I remember what we now call "terrestrial radio" with ridiculous fondness. I recall huddling with it long past bedtime, the volume set low, hoping to hear something I loved. Thus the truism of how radio is the most intimate medium: You're in bed with the lights out, the music and the DJ's voice going straight into your brain, the images created are yours alone.
I remember, with terrible pangs of longing, my first days as a college radio DJ. Doing a 3 a.m. to 6 a.m. slot in a small town in Ohio, even if, during those still and wintry nights, I could have been the last living person on earth for all the people who were actually listening.