Beavis from "Beavis and Butt-Head" tends to be oblivious to the obvious. Especially when he watches TV, he tends to have no idea what show he's watching. An example of how to use this image would be:
Watches "Hey Arnold
"How come that blonde girl wants to make out with Stewie
-Griffin">Stewie Griffin? Doesn't she know he's gay?"
"So like, was the first movie about the boat sinking a dream too?"