Radio. I was into radio from my youngest days. My first station was WLS, "The Big 89" from Chicago. Top 40, but great variety in those days. I remember once, I turned the tuner on my brother's radio accidentally and it went off WLS. I thought I had broken the radio! I didn't know there was more than one station.
When I was 12 or so, I became obsessed with 50s and 60s music. WCFL was my station. When they changed formats, I phoned the station in tears to say goodbye to my favorite DJ, Bob Kraft.
When we moved to Atlanta, I discovered WREK ("Wreck") radio out of Georgia Tech. It blew my mind. They would play absolutely anything on that station at any time. Total variety. Late nights, it was run by a machine that would still play anything, except sometimes it got stuck.
JMK, WXRT was a heavy metal station back when I was a kid, really hard rock, then it changed to a smooth adult station, then I don't know what.
td, KDKA is not only Pittsburgh's first station, but America's. I think it is the only station east of the Mississippi to start with a "K". I used to listen to Pirates games on there all the way down in Atlanta. The power of AM radio!
Ron, WOWO is another great AM station you can pick up anywhere at night.
Sadly, I scarcely listen to radio nowadays.