Only the first two specials from the 80's have been released on DVD, with no plans to release the rest.
Subverted with Season 4 of the 2003/2007 series. Season 4 was not brought in by Kewlopolis and the DVD release of the 2003/2007 series became erratic shortly after the rights transferred from Playmates and DiC to Hasbro and Moonscoop, which had many fans worrying that the releases will grind to a halt before all episodes could be pushed out on DVD. However, one thing that did not happen was the 2003/2007 releases grinding to a halt, and in March 2012, almost 5 years later, the last unreleased pair of episodes went out on DVD.
The 2003 series: A somewhat convoluted version — Ice Cream Island Riding Camp for the Game Boy Advance and the PC port of The Sweet Dreams Game for the PS2 got an Europe-only release. Also, PS2 version of the Sweet Dreams Game never got an NTSC/J release in Asia despite the show's popularity in the region.
The 2009 series: IOS apps released by a company called Cupcake Digital are unavailable in Asia. Also, the any post-season-1 episodes in the 2009 series is this to Malaysia, since the show, like Care Bears: Adventures in Care-A-Lot, ended up on Boomerang, which is not available in Malaysia. While fans have successfully pressured CN to air season 1, season 2 and above have not aired. And it doesn't help that the video clips and full episodes on The Hub's website are region locked and cannot be accessed from outside the US.
The 2003 episodes are seeing re-releases on Leap Frog's app center for the LeapPad Explorer and Leapster Explorer series of kiddie consoles. Live in Asia, Latin and South America (the three areas where the version of the show is most popular) or an area of Europe outside of the UK? Sorry, the title is only available to the US, Canada, UK, Australia and New Zealand. American Greetings and friends are definitely working to screw over the biggest fans of the series.
CBS/Kewlopolis dropped the show after Season 3 and did not air season 4 following the master license switches and courtroom battles between Moonscoop, Cookie Jar and DiC.
Not by The Hub, but by Cartoon Network, which somehow acquired the rights to air programming featuring Hasbro's characters in most regions outside North America. Arguably, Cartoon Network's action of putting the show on it's sister channel, Boomerang, instead of on the main Cartoon Network channel itself, qualifies for this trope. Not only is Boomerang not as widely available worldwide as it's older sibling (to the point that there are countries in the world that have cable providers that do carry Cartoon Network but not Boomerang), in countries that do have both, Boomerang is typically a premium size-up package pay channel while the main Cartoon Network channel itself is a basic package pay channel. This severely limits the availability of the show.
After much pressure (remember that SSC has a berry, berry strong fanbase in Malaysia), Cartoon Network has agreed to air SSC:BBA on the main channel in addition to Boomerang. However, the episodes are not only one whole season behind Boomerang, they're aired at an ungodly time of 6 AM, with no repeats- it only gets one slot for the whole day (It airs twice a day on Boomerang, and at more reasonable times too). And after they completed season one, it's just... gone. No follow up with Season 2 and newer episodes. Comparatively, CN airs their Cash Cow FranchiseBen 10, about 10 times a day, and lots of old classic shorts and originals reruns that belong on Boomerang in the first place. If that's not being screwed by the network, I don't know what is.
1980s specials: Russi Taylor, best known these days as Minnie Mouse and Martin Prince, but nearly inescapable for any 80's cartoon watcher, is Strawberry Shortcake. This is actually her earliest listed voiceover credit at IMDb.
2009 relaunch: The switch from the relatively low-key in-house voice actors of DiC to The Ocean Group resulted in: