While looking through old tapes on our Beta VCR, I found an episode of Smothers Brothers Comedy Hour. It included a ventriloquist, PDQ Bach, and Super Dave Osbourne... the acts I remembered from seeing it as a kid because I enjoyed them so much. But I also found this other act I didn't remember at all, probably because my sense of humor wasn't developed enough to enjoy it. Anyway, today I think it's hilarious.
It's Jim Stafford singing Cow Patti. I captured the video into RealPlayer format. So, if you have that player, you can download the video here (my server doesn't stream it, sorry):