Hologram acrobats. Chewbacca has an English-speaking family. Jefferson Starship performs with lightsaber microphones. W-T-F.
The 1978 'Star Wars Holiday Special' is well... really f'ing weird. Did I watch the whole thing? Absolutely not.
Even the actors look like they hate that they're even involved. That being said, you've got to watch this thing - absolute, cringe-y, intergalactic holiday cheer!