With the advanced filters there should be an option to search for TV shows that have at least 1 watched episode, and at least 1 unwatched episode. (AKA shows that you are in the process of watching)
You can already do that using an advanced filter w/ 2 criteria:
-
Unplayed Episodes→is true -
Show Plays→is greater than→0
Alternatively to #2 you can also play with Show Last Played using a date / duration that reaches before you created your server.
2021 clean-up: implemented (option available w/ existing criteria)