ITunes 12 missing many info components such as season, episode. How do I get those back ?

Question

I use a variety of info fields such as episode number and season to create smart playlists.  While they show up as available columns to display, how can I edit those fields?

Answer 1

Goldbug, if you read my previous post you would see that you can edit the episode ID and season tags in the new iTunes it is done in a slightly different way though.
Add the video to your library, by default they go into your "Home Videos" section for some reason.  Navigate to the Home Video section (you cannot do this from the sidebar as before though).  Highlight one or more of the videos and right click and then "Get Info", under the options tag change the media type to TV Shows and click OK.  This might take some time if you have multiple videos as it has to sort of re-write the file to add the media type.
Now go to the TV Show section and click get info on your TV Show, in the details section you can add the title, season and episode of the show.  What is new (and for the better) is that now you can click the small arrows at the bottom to scroll to the next show to edit.  Before you had to open up each episode individually to add the media type and episode numbers etc.
I still don't know why this cannot be done from the same dialogue box, however once you start using it the new system is an improvement on the old one purely because you can scroll through videos (once the media type is changed to TV Show) and add the episodes in one go.