I loved "Arthur's First Sleepover." I loved how it was such a simple yet fun episode, and how they got some "revenge" on D.W. It's probably one of my favorite episodes in the series, actually.

Against most of the opinions that I've heard, I really didn't like "Arthur's New Years's Eve." Arthur not being able to stay up, Grandma Thora not waking him up (she did try, but not too hard), and D.W.'s comments at the end just made for an episode that I didn't quite like.