For decades, DC Comics has published special Christmas issues of their main titles, especially in the series starring their first and most iconic hero Superman. As one of DC's most adapted characters on the big and small screen, The Man of Steel has headlined in both live-action series and animation. While Superman has had his share of live-action holiday adventures, some fans might be surprised to learn that he's never had an animated Christmas episode.
Source：https://www.cbr.com/superman-tas-no-christmas-episode/
