MTV playing this was shocking simply because, at the time, Metallica had been a band that had resolutely sworn to NEVER make a music video. I remember the night it debuted on Headbanger's Ball, and at the top of the hour they announced videos by assorted bands that were going to be played, and when the announcer said "Metallica" I turned to my best friend and asked "Did they say METALLICA?" To our shock, they HAD, and it was equally shocking that it was the full length version of the song. After it took off, there was a single version of One, which was still around five minutes long or so, but when it debuted it was the full song. The song itself is the standard Metallica thrashy ballad, and honestly, they never did that better than Fade To Black, but back then, seeing a seven minute plus Metallica video on MTV was like seeing the metal underground march out into the light.