Wow, I should check here more often so I can post updates. A couple of things were happening:
1. I was moving my nameservers from my work's old co-loc to rackspace.com. This resulted in a delay on the DNS updates.
2. We were migrating TheTVDB from the old server to a much faster one at a new co-loc.
3. The new server didn't have PHP configured properly, zip installed, and had permission errors for the API htaccess files.
4. I corrupted the forum database when moving it. Coco had to do a fresh install of the forums and import all of the old accounts. Unfortunately the only backup I could get to work was a few months old.
Unfortunately I've been overwhelmed with actual work due to our move to rackspace.com and haven't been able to fix some of TheTVDB's issues right away. Coco and the myTV guys (
http://mytv.senseitweb.com) put some serious work into getting the server moved.
The result of the above items is that some people wouldn't be able to get to the site at all, some people would, but random series wouldn't have the zipfile generated which is what XBMC uses for its updates.
A few hours ago everything got fixed (we think) and we started a regeneration of the entire XML structure, which will recreate the zipfiles and bring them up to date. This took 10-12 hours on the old server, so I expect anywhere from 6-10 hours on the new one.
So, you should be resolving thetvdb.com to 65.167.176.153. If you aren't clear your DNS cache. All other issues should be fixed in the next 6 hours.