 Public signage is usually in French, with occasional markings in Luxembourgish, German and/or English.For television commercials broadcasting on RTL, if the advert is for an international product or service like a car or a television, it is entirely in French.However, if it is a domestic product or service like for example like mineral water or Luxair, the spoken language is in Luxembourgish with the taglines in French, or less frequently in Luxembourgish or English.