So You Think You Can Dance is an American televised dance competition show that airs on Fox in the United States and is the flagship series of the international So You Think You Can Dance television franchise. The series premiered on July 20, 2005 with over ten million viewers and ended the summer season as the top-rated show on television. SYTYCD was created by American Idol producers Simon Fuller and Nigel Lythgoe and is produced by 19 Entertainment and Dick Clark Productions. The first season was hosted by current American news personality Lauren Snchez. Since the second season, it has been hosted by former British children's television personality and one-time game show emcee Cat Deeley. During its second season, the program remained the No. 1 rated summer show (adults aged 1849) but it has declined in ratings since and, despite an initial ratings rise at the beginning of season 9, the show has since hit an all-time low in viewership (at 4.