Wow... I'm surprised at how many of y'all that are about my age went the Heavy Metal route! For me, Black Sabbath and Led Zeppelin was about as heavy as it got for me. My musical tastes took a turn towards the south (Marshall Tucker, Charlie Daniels, Outlaws, Skynyrd, etc...), then more of the jam band (Grateful Dead, Allman Brothers - which overlapped with the southern thing).
And of course I liked all the standards - Beatles, Stones, Pink Floyd, Van Morrison... too many to mention.
Now I like a lot of new artists, but none of them are what I would consider any kind of metal.
When I listen to the radio, it's this station, and this station only (unless I'm driving during a Colts game or a Nascar race ). They have their playlists listed and I think you can stream them live. I know I can on my phone, with their app.