When click to add show button choose the down arrow then you will get scan hard disk. Tell it what folder you want to search, also mark search sub-folders so it will find the episodes in your season folders. You might have add titles, season no. and episode no.'s as the tag bit doesn't work for me.
You can get all the rest of the info from whatever script you want to use. I know it might be a pain in ass but i would recommend you do 1 show at a time, the whole folder could take a while depending on how many shows you have.
Hope this helps T.
p.s the other option is to manually put in a show title then add the episodes on the ADD/EDIT window EPISODES tab.
For me is better, i scann the Foldername off all TV series. I need badly medialabel to sort my Hard drives. I must scan the Hard drive and will us in the first step the name of the tv serie. The episode are later.