In many ways, bizarre holiday specials begin and end with the Star Wars Holiday Special. For something so bad it was only shown on TV once, never to get a VHS or DVD release, it's somehow become almost as legendary as other, much better Star Wars movies.
The plot, as it were, has Han racing to get Chewie home to his family for Life Day, the Wookiee Christmas that practically invites Grinches galore. Before the big reunion, however, we get ten minutes of Wookiees grunting at each other, without any subtitles to tell us what they're saying. Judging by this special's understandable dialogue, however, the Wookiees probably weren't saying anything interesting anyhow.
That's not even the worst of it. It's the non-Life Day stuff that catapults Star Wars into Christmas infamy. Star Wars' own Luke Skywalker shows up looking as orange as the sun, sitcom veteran Bea Arthur is a Mos Eisley Cantina bartender who ultimately serves no purpose at all, Chewie's dad gets excited over a sexy Diahann Carroll music video, we see a Star Wars cartoon with some of the worst animation in history, 1970s comedy stalwart Harvey Korman is a cross-dressing, four-armed, English-speaking TV chef the Wookies learn to cook from somehow, Jefferson Starship performs via Wookiee music box, and the galaxy's favorite princess, Leia, sings a "Life Day" carol to the tune of the Star Wars theme. It all sounds bad, but it's actually so much worse.
Still, you must see this special at least once, simply to say you did. You also need to see its super-creepy disco-themed promo video once, simply to say you endured it.