Question TCL 43P725 not displaying Czech diacritics in EPG


Sep 20, 2014
I use the tv to watch both Polish and Czech television. I have no issue with Polish diacritics in EPG, only Czech which are displayed as 2 letters (a weird character preceded by D). I've been looking for an option to change text decoding, but there seems to be none as far as I can tell. I was hoping to find it in the service menu, but no luck there either. I had the same issue with my previous Samsung smart TV, but fortunately I was able to resolve it by going into the service menu. Also, changing system language to Czech didn't help.
What can be done to fix this issue?