Ok, I am a occasional BnB viewer (I don't have MTV, but I watch it at friend's places occasionally) and I am curious if Beavis or Butthead's parents have ever been shown. Though it appears they live in their own apartment, they do go to high school and are apparently 15-16 years old.
In the episode entitled "They're Coming to Take Me Away, Ha Ha" Beavis said how he feels his mom. Then Butt-Head says "That's not how I feel your mom!" It was hilarious.
There's a family bush (Uh, Uh) in "This Book Sucks". Beavis and Butt-head got different moms, but perhaps the same father... There is also an episode with Diarea where they say they don't know for sure that they have the same dade The mother of Beavis resembles Butt-head and vice versa. But that's not very special. With this bush you can see that their family, is really ONE BIG family, If Ya Know What I Mean...
I don't know how they pulled all that off without giving any names. I thought it was somewhat corny how they had "Mother Butt-head" and "Grandpa Beavis"... I, myself, could have come up with tons of neat first names for the Head family (Chet, Dick, "Bone", Given, ad cranium....)
I don't think Mike Judge was ever prepared to make anything about any of his work "canonical". When MTV happened, he went from "nobody" to "contraversial" in under a year. At first, Beavis and Butt-head were as unheard of as In-bred Jed, and almost as important on Mike's schedule. He probably even had a real job. Then, MTV said "those guys are cool>" and a year later, he's writing a book, as MTV puzzles over whether to allow certain episodes and scenes to remain on the air. Yet another year later, he is sending storyboards to MTV, where it is sent to some drawing company in another country, to be turned into animation, while writers at MTV are arguing over what should come out of the duo's mouths during The Rollins Band's "Liar" video, and a censor board is cutting out 90% of "Stewart's House" so that it can be aired once again, while yet another board of programmers is pondering when to release "The Lost Episodes" where we see "Stewart's House" uncut.
Two years ago, Beavis and Butt-head didn't even have a school, and Van Driessen was dead. Mike Judge never thought he would be generating recurring character after recurring character, or modeling future episodes against past ones. Now, due to the secret cult following, he has to, and I don't really think he can.
Case in point: When Beavis moons the TV in season-3 eps, shouldn't we see the tattoo of a butt with a butt-shaped tattoo on it on his butt?
The BnB Experience, while somewhat humorous, is not a source for accurate information about the show. The Family bush for example does not have Butthead's cousin RichardHead huh huh. There are many other inconsistancieswhich I will not go into at this time. I view is as something written by someone else, who didn't bother to watch the show very much. Or something.