Wait, go back to the beginning. You say you have no TV shows options under Videos? I am not sure what you are referring to.
Are you talking about:
From the Home Screen Main Menu - on there you have Videos, Movies, Settings, etc. but 'TV Shows' is not on the Main Menu?
This would make more sense than the alternative:
From the Home Screen Main Menu - on there you have Videos, Movies, Settings, etc. When you click/select Videos you do not see 'options' for TV Shows. What options are you expecting to see?
In your second post, it seems you have figured out how to ADD SOURCE, navigate to you television folder, and set the content to TV shows - this automatically enables tvdb.com as your scraper. Is this true? If so, you should then see Videos, Movies, TV Shows, Settings, etc. on the Main Menu. Is this true, ie do you see TV Shows on your main menu?
Now, If you go under 'TV Shows' from your main menu and see only one tv show I can guess the problem. Tell me this, if you go to main menu, videos, your television folder... do all of your tv shows appear? If the answer to both of these is yes your issue is likely the way you have your tv shows files named. The scrapers depend upon certain file naming conventions in order to work.
This wiki might be a good starting point for you.
HOW-TO:Scan media files into the video library