Twas the Night Before Christmas, the 1974 Rankin-Bass animated Christmas television special based on the famous 1823 poem that opens with this line.

In this television special, set in the town of Junctionville in a world where humans and intelligent humanoid mice apparently openly interact at least on a professional basis, Santa Claus is offended by an anonymous letter printed in the town's newspaper claiming that he doesn't exist. In response, Santa returns the entire town's letters (the letter was signed "all of us") to him unopened. Upon reading the anonymous letter printed in the newspaper, Father Mouse (voiced by George Gobel) — a mouse assistant to the human clockmaker Joshua Trundle (voiced by Joel Grey, the credited narrator) — immediately suspects that his brainy son Albert is its author. Albert (voiced by Tammy Grimes) confirms his suspicions, repeating the letter verbatim to him.

Father Mouse and the Trundle Family devise a plan to appease Santa by building a singing clock tower for him, built with a special recording to play a song to coax him into visiting Junctionville on Christmas Eve. Unfortunately, Albert enters the clock to explore it without permission, and inadvertently damages it seriously, thus rendering it inoperable and seriously damaging Trundle's professional reputation. Furthermore, the mayor, publicly embarrassed at the clock tower's failure, refuses to give the clockmaker access to it for repairs.

Confessing his mistake, Albert volunteers to repair it himself and Father Mouse tells Joshua of the situation before waiting at his bed with worry on Christmas Eve. Although Albert does not complete his task until about one minute after the Midnight deadline, the clock does play its song within earshot of Santa which convinces him to visit the town after all.

The special aired for decades on CBS before moving to its current home network, ABC Family.

One Christmas season, the citizens of a small town, both human and mouse, find their letters to Santa Claus have been unceremoniously returned. Furthermore, there is a message that says the entire town has been removed from Santa's delivery itinerary due to being insulted by a letter from that town dismissing his existance. While Father Mouse confronts his cynical son, Albert, who wrote the letter; their human companions, a clockmaker and his family work to find a way to regain Mr. Claus' favour. Written by Kenneth Chisholm