Is it just me, or does the voice of the Astrolabe sound remarkably similar to that of Snake? I was thinking this every time it spoke, and then when Snake stole it at the end, I thought, "Oh, what delightful irony!"
Then again, I may just be off my rocker.
"I am not returnable... chickie-poo."
Overall, I liked the episode. Reminded me a lot of HOMR (easily one of my top 10) with all the animation gags and homages. Not nearly as many quotable lines, but great stuff nonetheless, and a great Christmas episode. I think The Simpsons just might be on the upswing in season 15.