I'm really lagging on the Christmas carol thing, so here's another of my favorites. This is not the best cover of it, but I couldn't resist the early video of the Lennon Sisters. I'm sure I must have seen it when it was orginally aired. Certainly Lawrence Welk was the list of weekly shows we watched in any season.
Here's the Bing Crosby version. It's a much better cover but it doesn't come with video.