Just got done watching tonights new xmas episode of South Park....WOW!! That has got to be one of the most creative things they've done in a long time, and it brings the entire South Park series full circle. I had reservations about the whole Hankey family thing, but they pulled it off very well and we got to see sides of both Mr. Hankey and Butters that we've never seen before. The whole concept of Cartman's orginal voice being so deep because it's actually Stan's voice is so far out that it works perfectly, as does the origin of Kenny's death on film and why the original SOX looked so crappy. My only gripe is that the Mayor's voice still needs some more work. All in all though, a terrific Xmas episode and a perfect way to end the year.
References
Mr Hankey's song to his son is obviously a parody of the "Lion King." However, it seems the tune of the song is based on the song "We Are One" from the made-for-video sequel, "Lion King 2: Simba's Pride".
The song Stan and Kyle sing is almost word for word based on a song in the old Rankin Bass Xmas special "The Night Before Christmas". This explains why Kyle's face contorts briefly to look like a Rankin Bass animated character, mouse-like teeth and all.
REVELATION We see Stan's hair for the very first time, at least some of it. It pokes out of his hat when Kyle wakes him up. If you havent seen it, I wont tell you what color it is.