since several years we listen on new years eve to a 4 hour program on radio from a local cultural station. This time we won the first price, an one week vacation in Greece after getting the right answer for all 8 riddles and putting together the final solution.
Even if one doesn't take part in the quiz, it's quite nice. Good music (Classical, Chanson, Jazz, Folk), excerpts from audio books and so on, and on this station there is no advertising (24/7).