Start year Waku Waku

Dutch game show Waku Waku (https://www.imdb.com/title/tt0468630/reference/) currently has a year range of 1989-2001 despite the first episode having an airdate of November 18th, 1988 (see https://www.imdb.com/title/tt33064699/reference/). Can a staffer correct the start year please?