Thank you very much, Mr. Earworm

I don’t know where Andrew picked up on this insidious bit of 80s music. He’s been singing: “Dōmo arigatō, Mr. Roboto” for a week now, over and over again. So I finally asked, “Have you heard the entire song?”
He hadn’t.
YouTube to the rescue! But first, a little background. From Wikipedia:
The song tells part of the [...]