Logic with Beavis and Butthead

Beavis and Butthead used to demonstrate logical fallacies:

Circular causation

A chicken and egg situation. Not always the result of faulty logic, of course - life is often like that, as Butthead demonstrates here....

Beavis : How come Tom Petty's on TV?
Butthead: Coz he's famous, dumbass.
Beavis : Yeah, but how come he's famous?
Butthead: Coz he's on TV, buttmunch!
Beavis : Yeah, but how come he's on TV?

and so on....

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