I think that there are two different ways to manage and view your files:Those 4 TV programs can be seen in the folder-view, in folder: Test-Folder-02. But they are also still listed in the main-view, so it doesnt seem to reduce the number of .ts files being 'seen' in the main-view
(1) View as a folder tree, and navigate up and down the tree to access the subset of files that you want to list (e.g. list a particular TV series that resides in its own folder).
(2) View as a "single list", but use selection criteria to reduce that list to the specific files that interest you (e.g. "all films that feature John Wayne"). With this approach, the files in the separate folders are logically glued together (but not physically re-arranged) to create this single list, and then the selection criteria are applied. So I think that what you have found is probably the correct behaviour -- the single-list view will include the files that you moved to separate folders.
If you moved all files into relevant folders (e.g. one folder for each TV series), you would then use only the folder view in the future, and completely ignore the single-list view, so it would not matter that the single-list view still showed all files. But you may not want to do this (too much work to re-arrange the files, or perhaps you like using the single-list view for some files).
@ge2301 may be able to suggest a solution.
-- from CyberSimian in the UK