Hello SpiderSprog, happy to hear your utilizing the tvdb lookup.
As far as tagging of television shows and how they are presented in the media browser there has been some discussion on this as of late and a minimum standard of sorts has been introduced however it has not been implemented yet. Essentially, it would list a show by the title attribute, then by clicking on that you would be presented with seasons and then episodes. This needs to happen in actual code as the other solution ive come across somewhat breaks how things should work as far as UI continuity.
So, all I can tell you is that its a ongoing concern and people are actively working to bring it inline.