A TV series known as "Beafws a Pen-ôl" first aired in Welsh on the S4C channel in the late 1980s, but was dubbed over in English and aired on MTV. This American version would become so famous it was commonly mistaken for the original version.
The religion of Beavis and Butt-head was created by their messiah; Mike Judge. Cave paintings of the duo have been found, dating back to as early as 10,000 BC. The native Celtic tribes in Britain had been worshipping them, before the Germanic invaders invaded Britannia and oppressed their culture, effectively wiping out this religious belief.
These Briton tribes nickanmed them: "Beafws a Pen-ôl" (Yes, ancient Britons spoke Welsh, retards). Beafws a Pen-ôl would later return as important figures in the later Welsh religion, Llionism. A TV series of the name Beafws a Pen-ôl would later be produced by north Welsh Llionist comedians for S4C, and aired in the late 80s. This TV series was then dubbed over in English as Beavis and Butt-head and aired on MTV in the 90s.
"Huh huh uh huh huh uh huh" - Butt-head
"Yeah, heh heh, yuh, yeh, heh heh" - Beavis
"Huh, hey Beavis, that says Bush! Huh huh!" - Butt-head after seeing a presidential campaign for George Bush Sr
"Huh, yeah, heh heh! Bush! Heh Heh!" - Beavis, replying to Butt-head
"This is the greatest music video I've seen in my life!" - Butt-head watching the "Them Bones" music video by Alice in Chains (he said the same about another video, but who gives a shit?)
"Hey look! A baby!" - Beavis also watching the above music video
"I AM THE ALMIGHTY CORNHOLIO! I NEED TP FOR MY BUNG-HOLE!" - Beavis