The fact that recording with subtitles is impossible, according to this (from another thread):
Quote Originally Posted by Philips - Benedickte View Post
Hi shemeri.

Welcome to the forums.

It is not possible to record with subtitles.

Best regards,
Benedickte
This is so bad. I'm swedish. Part of watching TV (like documentaries or movies) is having them subtitled! It's included in the experience! This gotta be fixed...