For some years in the 1970's, NBC would run 'The Wonderful World Of Disney" at 7 PM on Sundays. Each Christmas, either after 'From All Of Us To All Of You' or Babes In Toyland 1961, there would be a narration by the main narrator, thanking viewers for watching throughout the year. It was set to a scrolling still of a cartoon train, its cars packed with every last animated character Disney had up to that point. The front, of course, had Mickey and pals, but the last cars had the most obscure characters you could imagine, even a few who might challenge even a Disneyphile to ID. I no longer believe it was attached to any particular special. It was just shown after whatever the near-Xmas episode featured. My efforts to find the video or the still have gone nowhere for decades. I don't even really have enough info to post an article here. Any help?