Twas the Night Before Christmas is a 1974 animated Rankin Bass TV special about a town whose mouse and human families have their letters returned unopened by Santa because he is offended by a letter to the town newspaper. The town seeks a way to appease Santa by offering him a special singing clock, trying to get him to come to their town anyway. Santa accepts the bribe and brings presents as the rest of the Clement poem is read.
Poor kids! Santa seems a petty and vindictive figure here. I had not seen this one before but don't like the portrayal of Santa at all. Not exactly Jolly Old Saint Nicholas.
7/2/2009: DarkSider's Realm reviews this.