The top comment on the Porky's Butthole video analyzing the call is absolutely hilarious
Hes been calling to complain for over a month, tired of seeing the same show (Porky's Bu*thole), so often. He tuned in to watch last night, and it was Porkys freakin ol' Bu*thole, over and over, until the early morning. He doesn't understand why they would think kids want to watch Porky's bu*thole over and over. He was up all day watching this channel from 7:30 to night and the shows were always late, because of commercials. Hes tired of the commercials. Specifically, he repeatedly complains they cause the shows to be 5 minutes late. He wants to complain to the FCC to try to get the whole station shut down (it sounds like, because of the commercials). He further doesnt understand why there has to be so many ads for so long. It's not like kids are going to rush out to buy armloads of stuff they see in the commercials, just because they appear so frequently.
Dang 'ol Boomhauer here isn't calling to complain about Beavis & Bu*thead like Mike Judge thought, he was tuning in to watch Looney Tunes at a specific time, like 7:30 right on time. But, the last show, also Looney Tunes, hadn't ended yet, so he ends up watching right as Porky Pig is giving the "That's all folks!" outro against the famous concentric red circular backdrop - in what I would assume this guy thinks looks like a bu*thole. Thus: Porky's Bu*thole. Then it goes straight to commercials for 5 minutes and the episode that he was planning on watching doesn't start until 7:35.
So he's complaining that the episodes are offset and he keeps tuning in at what he thinks is the beginning, but it's actually the end of the last episode when Porky is saying the show is over.
In the 90s Looney Tunes aired on Nickelodeon, which was owned by Viacom along with MTV. So it's conceivable that he was trying to reach Nickelodeon (which explains why it's primarily kids toy commercial he keeps getting), and ended up reaching someone at Viacom who assumed it must have something to do with Beavis and Bu*thead and forwarded it to Judge.