Good tidings for toon fans. You can now own four classic Christmas episodes from your favorite Nickelodeon series. "SpongeBob SquarePants" tries to win over undersea Scrooge Squidward in "Christmas Who?" Then, the "Rugrats" are "Babies in Toyland" when they visit an overly mechanized Christmas theme park. "The Fairly OddParents" have to work overtime to undo Timmy's wish for "Christmas Every Day" before Santa collapses from exhaustion and the other holidays revolt. And Reggie and Otto of "Nickelodeon Rocket Power" take on more dog-walking than they can handle to buy a special present for Ray in "A Rocket X-Mas."