Hi Uwe,
First of all, congratulations on your awesome work here, I was trying to found a properly replacement for my old next-episode app and found out about yours through Editor Picks on the market, already bought SeriesGuide X :P
Correct me if I'm wrong but I think the "Library" tab on the Add Show section is for displaying shows that you have on your Trakt account, I know I used it the first time I launched the application but since then I'm not able to use it, it keeps "loading" forever, all the other sections work just fine this is the only one that never ends loading.
Well that is my current problem, besides that I loved your application, congrats again.
Cheers,
Fede