Thanks for help. I've already did it, but there are some plugins translation files missing. E.g. for RadioTime, InfoService, WorldWeather, OnlineVideos, SubCentral.Please sign up for Transifex, and you can edit the Czech language for Moving-Pictures project there. It will then be automatically merged in the next release. You will then also be instantly notified when a new English base update takes place, and only have to edit the missing/updated entries.