I remember the BBC broadcast. We were living in Scotland at the time My eldest sister was babysitting me and my other 'middle' sister. The elder sister was a Yardbirds fan and knew what was coming. So we all had to listen to it on the family Stereo gram, quietly, or else! I was only nine or ten so it didn't really do anything for me then. Even when she bought the LP which she kept locked in her war-drobe anyway, I didnt give it much thought
Fast forward, shortly after the release of Led Zeppelin 3. In a school music lesson our new glamorous young American student music teacher. Is trying to get us to sing the trad song Gallows Pole. A voice at the back of the class shouts "Miss this is old dead music" Said, glam teacher ( Blonde blue eyed and a clever minx ) pulls out LZ 3 and puts it on the dilapidated old school phonograph.
The class wern't convinced, but I was! Since I was a Music room monitor ( just to get near to her lovelyness) and whilst I was clearing up the books, she played more of LZ 3. When I got home, I clandestinely accessed Eldest sisters war-drobe via the strangely broken back pane, and there it was. I didnt have any money to buy my own LP's But when I did in about '75, it was one of the first lp's I bought. (Second hand off a mate!) Not long after, Glam Music teacher moved back to North Carolina ( Lovely accent!) and we as a family moved to England. Not long after that I started to learn guitar. The early Zeppelin lp's were my next tutor, after Bert Weedon's Play in a day and The obligatory Shadows numbers of course.
The rest, as they say, was "Biological Research"