Serviio

Since installing Serviio, most of my video-files collection is viewable via the Sony TV. Unfortunately, not all of it is...

I know, the server processes them -- for example, the actors/directors involved in a particular movie are listed. But, when I ask to see the list of movies of the actor, sometimes the TV shows an empty list.

Any ideas? My profiles.xml is an unmodified copy of what's distributed with Serviio-0.4.2. Could it be, the TV is filtering out some formats, that Serviio expects it to accept?

It might be it, but with the Bravia profile hopefully not. Can you check if the file has been added (in serviio.log) and provide ffmpeg -i <file> for a file that is not displayed?
Easiest would probably be installing Intel tools (link in signature) and running AV Media Controller which will enable you to browse Serviio's library - you'll be able to see if the file is there.