Nah, not the Alanis one (I know the one you're talking about.) I'm surprised nobody got this.

The video in question was Prodigy's "Smack My Bitch Up." It's basically a drunken and drug-filled first-person view of a night out on the town. Not only does it depict heavy drinking and drugs, but also a nice bit of nudity and sex. The sex is more implied than overt, but the nudity was very obvious. MTV caught some heat for showing it, so they only showed it a few times, all late at night. I just happened to be tuned into MTV at the time.

So when our grandchildren are watching MTV in the year 2050 and ALL videos on MTV have nudity in them, we can tell them who started it all...