I was wondering if anyone had posted this to YouTube, and sure enough, it’s there: one of the most unusual — and on re-viewing, charming — television duets from about 30 years ago. You can read the story behind it at this link. A more detailed report was published in The Washington Post just last year, with some surprising details about how this musical pairing came about — and statistics on what it eventually came to be: a Christmas classic enjoyed by millions.

Meantime, enjoy.