Not seen this reported here. I've just submitted the following bug report to Apple:
The library for the TV app is located on an external drive (APFS). When a movie or TV item is deleted, the TV app displays a dialog asking the file should be kept or sent to the Bin. If Bin is selected the file is removed from the library but never shows up in the Bin. The disk space on the used space on the external drive does not decrease. Eventually it is possible to run out of disk space even though the library is considerably smaller than the size of the drive. Using 3rd party disk analysis tool shows all the space that had been occupied by the deleted files is “inaccessible”.
Disk space cannot be recovered using the Disk Util “First Aid” option. The only way to get the space back is to copy the library to another drive, erase the original drive and then copy the library back.