I've avoided posting my opinion until now, but since it's come up I don't mind sharing it with the class.
Steve has heard me be quite critical with both barrels about 'intended airdate', directly and firmly. I'm going to share that here and now, since it's come up. I want to be abundantly clear, this is in absolutely no way personal in the slightest to him or to anyone who likes the 'intended' airdate notations and I completely understand and get their usage for the purposes of organizing a production order schedule in a calendar format.
It aired, when it aired, when it aired, when it aired. If people want to make personal notes about when the show was meant to air, when applicable, in case of pre-emptions or whatever, bless them. If they want to list it in the original place in order to keep a timeline or calendar coherent? Fantastic. Keeping it in that 'intended' place for a rewatch? Fantastic. I literally do this. (Edit: And I totally get acknowledging a pre-emption situation somewhere in records, be it personal or calendar/timeline)
But the airdate's still the airdate. The show at the top of this thread aired on December the 14th, full stop. To say the show aired on the 12th because of original intent, real or supposed, is whole-cloth inaccurate when the show actually aired on the 14th.
Here's an example of 'intended airdate' taken to silliness, even in the Barker era. There's an episode from the current Pluto rotation that, by episode number, """"should"""" (heavy quotes for a reason) have aired on January 20th, 1989 - but the Inauguration of the President was always going to be that date - there was never, ever going to be a first run show that day unless both the show and network were completely asleep at the switch. It aired March 23, 1989. Similarly, if they decorate the set for Christmas, and the shows aired Christmas week, but the production numbers have that week in November, they're still the Christmas episodes.
What's GREAT for tracking production sequence isn't a fiction of an airdate, it's the episode numbers. The show in question is #3072D and the other (also shuffled) shows that week are #3073D-#3075D. They were produced in sequence after #3065D and before #3081D. The episode numbers preserve the production sequence just fine, and don't need a fiction of an airdate to do the same thing. Organizing those shows into a calendar in production number order? Fine, sure. But don't tell me that the show that actually aired on December 14th is "the December 12th show" when it isn't. There wasn't one. The show was pre-empted. That's the actual history of the matter.
Related to the above, I've corrected the title of the thread and added the episode number.