What about adding a "Versions" box (under the Details one).
Some examples for the adding/editing:
- Version: (select all pertinent) - [Original] [International] [Director's Cut] [Network(s)]
- Split/Combined Episodes (choose one) - [N/A] [Yes: Split] [Yes: Combined] [No]
- Episodes: (enter manually)
- Altered/Cut Content: (select one) - [N/A] [Yes] [No]
An example for Scarlet Heart Ryeo:
Version 1 -
- Version: Original, SBS
- Split/Combined Episodes: N/A
- Episodes: 20
- Altered/Cut Content: N/A
Version 2 -
- Version: Director's Cut, International
- Split/Combined Episodes: No
- Episodes: 20
- Altered/Cut Content: Yes
This wouldn't help with the issue of tracking the number of episodes (if you're watching a different version from the one listed at MDL), but it would clear up a lot of confusion.
EDIT: Would also be best to allow us to re-order the different Versions, in case someone enters an alternate version first. This way, someone else (adding the Original after them) can set the Original as the first/top entry.
EDIT2: To lessen the amount of space that a "Versions" box would/could take up, only the very first Version could be visible (which would be the "original" ver.). Under that could be a button that says "more versions". When clicked, it would open a pop-up window with all of them listed.