Despite the plethora of Winter-themed episodes, there are only five episodes in the franchise that are directly related to Christmas. These are "The Nutcracker Scoob" (The New Scooby-Doo Mysteries), "A Scooby-Doo Christmas" (What's New, Scooby-Doo?), "Scary Christmas" (Be Cool, Scooby-Doo!), "Scroogey Doo" (Be Cool, Scooby-Doo!) and Scooby-Doo! Haunted Holidays.
Hope all of your holidays are fantastic!!! :)