 Complete the following phrase:  Hautier was known for his long-time commentary for RTBF viewers on the Eurovision Song Contest which he has done since the 1994 Contest after the regular commentator Claude Delacroix got promoted to the head of Belgian radio. In addition Hautier has co-commentated the event with Sandra Kim at the 1996 Contest and was until his death hosting the contest with Jean-Louis Lahaye which he has done since the 