You can watch Christmas movies on various streaming platforms, such as Netflix, Disney Plus, Hulu, Amazon Prime Video, and more. Each platform offers a variety of classic and modern holiday movies, including "The Nightmare Before Christmas," "Elf," "It's a Wonderful Life," "The Polar Express," "Home Alone," and many others. You can also find Christmas specials and shorts on YouTube or other video sharing platforms. Additionally, many TV channels play Christmas movies and specials during the holiday season.