A remake of one of the special indents the BBC used back when they had the rights to air the show. It doesn't seem common for a channel to commission something like this for a show not made by them. The Simpsons is probably the only one I've seen this happen for. Channel 4 have their own special segment (which I may draw something from later) but what you see above is more nostalgic.... and surreal. Hopefully some people will remember this, but I don't think too many know about it to begin with.
You've got me intrigued now! This is really cool and I'm going to do some research. I remember well the days when the Simpsons were on the BBC (because having no adverts rocked when you were a kid with no patience) but I don't think I remember this.