I was fortunate growing up near Boston. Because of the large number of surrounding colleges there were tons of young people who reached out to support the biggest FM station of that time - WBCN. They were truly one of the first AOR stations in the country and prided themselves on breaking new bands to the greater Boston area. Zeppelin gives tons of props to WBCN for helping them explode in New England since the station had been spinning LZ1 well before it was officially released. (Peter Wolf, lead singer of J. Geils was the nightime DJ at WBCN at that time).
So anyway, WBCN's signal finally found its way to our little town 50 miles north of Boston and every kid I knew would tune in at night to hear the next new rock band.
No-one knew at the time that "METAL" was lurking right around the corner...........
Black Sabbath
1970

I'm shutting my trap now since it's all been said here a million times already. And there's no need to post any song clips. This one is part of everyone's DNA, whether they know it or not.