my parrents own a 37pfl6007, via usb you can play mkv video, or probably other kind of video's, they have on the remote control a button for subtitles. I tested it and it works. When i put the same USB stick in my 37pfl8605 it plays the movie but i dont know how to select subtitles on the silver remote control that i own and belongs to the 37pfl8605. Help on the TV doesn't mention subs for USB media, only for analog and digital cable signal.
Can someone help me?

your reply is welcome in English or dutch language.