Beam Me Up, Scotty!: MANY, MANY fanfictions using Gratuitous Japanese have Kero/Touya/whoever call Syaoran 'gaki' (brat). Touya does call Syaoran this. Kero never says the word, instead calling Syaoran 'kozou' (closest translation might be 'punk') with Meiling going by 'komusume' (girl punk).
Colbert Bump: When NIS America announced that they're releasing the series with the Filipino-English Animax dub, along with the fact that it's on Crunchyroll, many people checked it out due to sheer curiosity. Now because of its newfound exposure, there's a Broken Base over whether the Animax or Nelvana dub is better.
The Danza: Sakura is voiced by Sakura Tange, although this is more likely a coincidence.
Hey, It's That Voice!: Seems the series has a lot of VA's inside and outside of Japan who voiced, or would later on voice, characters from the Gundam franchise:
Keep Circulating the Tapes: Despite dubbing all 70 episodes and broadcasting in several channels and licensing it worldwide, only a handful of episodes were released on home video. Leaving the other episodes to fade into oblivion. When the dubbed Cardcaptors and the subbed Cardcaptor Sakura were released simultaneously, the subtitled version outsold the dub. With low DVD sales, the companies that were releasing them suspended releasing the dubbed episodes and focused on getting the subbed versions out.
And now, because Geneon basically went out of business in the States, every DVD of the series and movies ever released is now out-of-print.
The DVDs had gone OOP even before Geneon USA folded, sadly.
Not any more, at least for the subtitled version, as Australia will be getting the subtitled version on DVD (using the recent remaster as a base as well) with the first half coming out in September 2012. Though the dubbed versions will still remain as this.
Good news: Discotek Media has announced that they licensed the first movie and will release the remastered version in 2014.
More good news: NIS America just got the series, and they're releasing it fully remastered, with the Animax dub (it's in mono only but better than nothing).