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That's strange. I haven't read anything about there being an issue with the streaming deals of those shows. I just checked YouTube and the original Mobile Suit Gundam and Zeta Gundam are gone from there as well. Gundam Wing, Seed, and 00 are still there though. I wonder why they decided to pull just those two shows.

There was a deal on bandai's end.  The shows were only put out as a promo for the UC gundam dvd release so they were only going to be temporarily available from day one, here is le proof....
 
 http://www.crunchyroll.com/group/CR_Premium_Members/forum#s=/group/CR_Premium_Members/forum%3Fextra_param%3D604710%26page%3D0
 
And yes it sucks bigtime but I am blaming Sunrise/Bandai.

@Karkarov: That explains there being a little teaser at the beginning of each episode.

@John_Martone: 
 
You will have a hard time finding it new.  Gundam Wing is still reasonably available though, Zeta Gundam shouldn't be too bad either if you poke around.  I wish I knew the financials behind all these streaming deals.  It can't be profitable to have a series like Gundam or even a Urusei Yatsura sitting on a shelf collecting dust.  Smart companies would look to make a deal like the original Naruto on CR.  CR has the entire series, but you must be a premium member to watch it.  Anyone who is a real Gundam fan would gladly throw down what, 7 bucks a month? to take a month or two to watch all their favorite series in full 480p.  God forbid while they are there they check out Code Geass season one again, or Eureka 7, or something else.  CR actually has a great selection that has nothing to do with simulcasts.