I saw this on MTV2 once and realized how great this show was. I saw it going way back to its 'Liquid Television' days. The episode was about Beavis and Butthead once again working for Tom Anderson by helping him make a pool by laying down the concrete. Of course, the poorly eye-sighted Anderson is oblivious to the fact these were the same two kids that ruined his house by painting words all over it, burning the shrubs and stealing his lawn mower, so he goes off and gets trapped in one of those gigantic home hardware stores which is hilarious in itself because it's impossible to find anything. The two of them are of course idiots destroying the tool shed and everything in it with Anderson's tractor and get stuck in a concrete filled pool.
'Genius' is the word for this episode.