12 new episodes of “Beavis and Butt-Head” will be shown on MTV starting Oct. 27.

...The reception is bound to be quieter than it was in the ’90s: back then the two became controversial figures, at the vanguard of televised crudeness, but they’ve since been far surpassed in the onscreen moron category. And the world that Beavis and Butt-Head have returned to, with its blogs and its Twitter feeds and its customer reviews, is bloated with dumb commentary.

But Beavis and Butt-Head’s comments are dumber and funnier, which has less to do with the message than with the perversely upbeat messengers. For everything in their world that “sucks” (wedding music, exercise, trees), they find something else “cool” (a sadistic bully, a gushing nosebleed, head lice). “It doesn’t get any better than this” is one of Butt-Head’s signature lines. Their topsy-turvy outlook, often very funny in itself, sets up the comedy of the video commentaries, in which Beavis and Butt-Head, who admire all sorts of stupid stuff, nonetheless find certain stupid stuff to be inauthentically stupid, and therefore beneath them.