User blog:American4real/Butters' father's first appearance in the show

What was the first Butters' Father's appearace in the show? Don't you actually think that it was in the episode "chickenlover"? Check 05:19 for Chickenlover on southparkstudios.com to make sure about it, or check this photo http://southpark.wikia.com/wiki/File:IMG000003.jpg