There were several How I Met Your Mother Christmas episodes over the course of nine seasons, with the holiday interwoven into some of the show's most memorable storylines. Despite having their own extended families, the group made an effort to spend time together when it counted the most, including major holidays like Christmas. Ted, Marshall, and Lily were especially excited to celebrate Christmas when they lived together. While expectations weren't always met, the group sure knew how to build unforgettable moments.