Try updating advancedsettings.xml https://kodi.wiki/view/Advancedsettings.xml#videoextensions and adding .tsv as a valid video extention. Then ffmpeg will decide if it can play it or not. If it fails upload the logs.
So I created an advancedsettings.xml file in folder
/storage/.kodi/userdata/
with this content:
<advancedsettings version="1.0"
<videoextensions>
<add>.tsv|.TSV</add>
</videoextensions>
</advancedsettings>
and...
BINGO!!! It works!
Obviously it's possible to achieve the same result just changing the .TSV extension to .TS because this is in the default video extensions.
Thank you!